y's house is at D, 750 feet from the intersection. There are distinct or different values in discrete data. These data take on only certain numerical values. We need to evaluate the statistical studies we read about critically and analyze them before accepting the results of the studies. state whether the data is continous or discrete The durations of a chemical reaction comma repeated several times Choose the correct answer below. 2. C. The data are Small letters like \(x\) or \(y\) generally are used to represent data values. QUESTIONState whether the data described below are discrete or continuous, and explain why. Sampling data should be done very carefully. answer below. As a rule, the larger the sample, the smaller the sampling error. Do you think that this sample is representative of (or is characteristic of) the entire 20,000 listener population? The colors of the houses are white, yellow, white, red, and white. Discrete is data that can take only certain values. Name data sets that are quantitative discrete, quantitative continuous, and qualitative. Divide into groups of two, three, or four.
Answered: State whether the data described below | bartleby What are the career options in the field of Statistics? Asking all 20,000 listeners is an almost impossible task. You'll find career guides, tech tutorials and industry news to keep yourself updated with the fast-changing world of tech and business. It was mentioned previously that two or more samples from the same population, taken randomly, and having close to the same characteristics of the population will likely be different from each other. For column 1, Press 5:randInt( and enter 1,10). From that number, count ten quiz scores and record that quiz score. Record the number. The distance from G to H in a. A completely random method is used to select 75 students. Surely, you can get all the study material on Vedantu mobile app- learn live online. The data are discrete because the data can only take on specific values. Since these samples are not representative of the entire population, is it wise to use the results to describe the entire population? a. The measure of ZQ is 10 less than the measure of LP. What is the main difference between discrete and continuous data? . O A. A defective counting device can cause a nonsampling error. O C. If Doreen and Jung took larger samples (i.e. 1.2.13 State whether the data described below are discrete or continuous and explain why.The times required by students to complete a statistics test Choose the correct answer below. B. Each travels 2 miles, then changes direction and travels 1.2 miles. They both did. The discrete data are countable and have finite values; their subdivision is not possible. The land areas of different countries Choose the correct answer below.
Determine whether the data are from discrete data or continuous data set. The Data and Story Library, lib.stat.cmu.edu/DASL/Datafiles/USCrime.html (accessed May 1, 2013). Another example is learning how to use calculators. On the other hand, if we count large quantities of any discrete entity. Number each department, and then choose four different numbers using simple random sampling. Suppose we take two different samples. (We assume that these are the only disciplines in which part-time students at ABC College are enrolled and that an equal number of part-time students are enrolled in each of the disciplines.) Any group of n individuals is equally likely to be chosen by any other group of n individuals if the simple random sampling technique is used. If you count the number of phone calls you receive for each day of the week, you might get values such as zero, one, two, or three. When you analyze data, it is important to be aware of sampling errors and nonsampling errors. It is countable. according to measurement accuracy, it can be significantly subdivided into smaller sections. The following pie charts have the Other/Unknown category included (since the percentages must add to 100%). Create a cluster sample by picking two of the columns. The Other/Unknown category is large compared to some of the other categories (Native American, 0.6%, Pacific Islander 1.0%). Different types of data are used in research, analysis, statistical analysis, data visualization, and data science.
State whether the data described below are discrete or - JustAnswer Hint: Data that are discrete often start with the words "the number of." the number of pairs of shoes you own.
Dynamic models of epidemiology in discrete time taking into account What type of data is this? It is classified into two broad categories: qualitative data and quantitative data. State whether the data described below are discrete or continuous, and explain why. The second sample is a group of senior citizens who are, more than likely, taking courses for health and interest. You are going to use the random number generator to generate different types of samples from the data. The two-digit number 14 corresponds to Macierz, 05 corresponds to Cuningham, and 04 corresponds to Cuarismo. They spend: $50; $40; $36; $15; $50; $100; $40; $53; $22; $22.
Qualitative or Quantitative? Discrete or Continuous? | Ching-Chi Yang Question: CS State whether the data described below are discrete or continuous, and explain why. For example, you can not have a natural order for apple, orange, and banana. For these samples, each member of the population did not have an equally likely chance of being chosen. Scott Keeter et al., Gauging the Impact of Growing Nonresponse on Estimates from a National RDD Telephone Survey, Public Opinion Quarterly 70 no. 24 people said theyd prefer more talk shows, and 176 people said theyd prefer more music. For example, if you randomly sample four departments from your college population, the four departments make up the cluster sample. Vedantu LIVE Online Master Classes is an incredibly personalized tutoring platform for you, while you are staying at your home. Record the number and the first quiz score. However, in the real world age is often treated as a discrete variable because it makes more sense when collecting data and when reporting the results of a study. The data are the colors of backpacks. Many of these students are taking first term calculus in addition to the organic chemistry class. There are no strict rules concerning which graphs to use. You can also visit their website. B. As you become accustomed to sampling, the variability will begin to seem natural. B. Convenience sampling is a nonrandom method of choosing a sample that often produces biased data. For the purpose of analysis, data are presented as the facts and figures collected together. Sleep deprivation is of no use, instead, you should take a nap to relax the nerves of your brain in order to learn and study later. You can email the site owner to let them know you were blocked. To choose a simple random sample from each department, number each member of the first department, number each member of the second department, and do the same for the remaining departments. Record these numbers. Which two towers are closest together. Data is classified into 4 types. b. They may be related (correlated) because of their relationship through a different variable. Data that can only take on certain values are discrete data. Measuring angles in radians might result in such numbers as \(\frac{\pi}{6}\), \(\frac{\pi}{3}\), \(\frac{\pi}{2}\), \(\pi\), \(\frac{3\pi}{4}\), and so on. 4. Whether you are a data scientist, marketer, businessman, data analyst, researcher, or you are in any other profession, you need to play or experiment with raw or structured data. Most data can be put into the following categories: Qualitative data are the result of categorizing or describing attributes of a population. Opinion poll posted online at: www.youpolls.com/details.aspx?id=12328 (accessed May 1, 2013). Variation is present in any set of data. Factors not related to the sampling process cause nonsampling errors. 2013 - 2023 Great Lakes E-Learning Services Pvt. Ordinal data have natural ordering where a number is present in some kind of order by their position on the scale. Every value within a range is included in continuous data. A sample that is not representative of the population is biased. The data . Data that takes distinct values and cannot be in decimals is called discrete data. The table displays Ethnicity of Students but is missing the "Other/Unknown" category. The data are discrete because the data can only take on specific values. Is the study impartial? So, you will get the result too! For example, 16-ounce cans of beverage may contain more or less than 16 ounces of liquid. This is true even when the samples are well-chosen and representative of the population. According to a report, today, at least2.5 quintillion bytes of data are produced per day. Otherwise, the variable is nominal. Performance & security by Cloudflare. A statistics professor collects information about the classification of her students as freshmen, sophomores, juniors, or seniors. Excelling your basic knowledge about the subject promotes conceptual learning and hence, you can easily get familiar with new concepts too. If she needed to, Lisa could have generated more random numbers. In this situation, create a bar graph and not a pie chart. Continuous data are in the form of fractional numbers. . Work more on basics as they form the basis for many other concepts. The colors red, black, black, green, and gray are qualitative data. The data are the weights of backpacks with books in them. C. The data are The measure of Ris 5 greater than the measure of ZO. Accessibility StatementFor more information contact us atinfo@libretexts.orgor check out our status page at https://status.libretexts.org.
Numeric variables represent characteristics that you can express as numbers rather than descriptive language. Determine whether the data described below are qualitative or quantitative and explain why: . 8. The three cans of soup, two packages of nuts, four kinds of vegetables and two desserts are quantitative discrete data because you count them. When you have a numeric variable, you need to determine whether it is discrete or continuous. In each form of random sampling, each member of a population initially has an equal chance of being selected for the sample. The amount of money they spend on books is probably much less than the average parttime student. Step 2: Discrete and continuous data. Show More. You have to be dedicated. Quantitative data, on the other hand, is one that contains numerical values and uses a scope. A bar graph is appropriate to compare the relative size of the categories. The data are continuous because the data can take on any value in an interval . Each undergraduate student in the fall semester has the same probability of being chosen at any stage of the sampling process. The gender of a person, i.e., male, female, or others, is qualitative data. O C. Researchers often prefer to use quantitative data over qualitative data because it lends itself more easily to mathematical analysis. Press ENTER 2 more times (even the repeats).
O A. Problems with samples: A sample must be representative of the population. Can I get some help? 5 (2006). Statistics and Probability questions and answers, state whether the data is continous or discrete The durations of This site is using cookies under cookie policy . B. Great Learning's Blog covers the latest developments and innovations in technology that can be leveraged to build rewarding careers. How to differentiate the obtained results as discrete and continuous data? A sample of 100 undergraduate San Jose State students is taken by organizing the students names by classification (freshman, sophomore, junior, or senior), and then selecting 25 students from each. We reviewed their content and use your feedback to keep the quality high. Pick three quiz scores randomly from each column. Qualitative data tells about the perception of people. Zanas house is at A, 500 feet from the intersection, and Tan's house is at B, 750 feet from F. Which distance is longer, the distance from Zana's house to Tan's house or the distance from Theresa's house to Is house? Many other courses are available online to master your foundational knowledge which may assist you later. A high school educational researcher interviews 50 high school female teachers and 50 high school male teachers. For the purpose of analysis, data are presented as the facts and figures collected together. This is completely natural.
Intraobserver repeatability for a standardized protocol to quantify Procrastination isnt even the last option if you are preparing for a statistics exam. Show Less. It is easy in many cases, discrete data is preceded by the number of, which makes the differentiation of results easier. No. Misleading use of data: improperly displayed graphs, incomplete data, or lack of context. To find the average GPA of all students in a university, use all honor students at the university as the sample. Measurement of height and weight of a student, Daily temperature measurement of a place, Wind speed measured daily, etc. Therefore this is discrete data. The data are discrete because the data can only take on specific values. The easiest method to describe is called a simple random sample. The data are the number of books students carry in their backpacks. A soccer coach selects six players from a group of boys aged eight to ten, seven players from a group of boys aged 11 to 12, and three players from a group of boys aged 13 to 14 to form a recreational soccer team. Evaluate it on its merits and the work done. Determine the type of sampling used (simple random, stratified, systematic, cluster, or convenience). Nominal data.Ordinal data.Discrete data.Continuous data. Record the three quiz scores in column one that correspond to these three numbers. This data helps market researchers understand the customers tastes and then design their ideas and strategies accordingly. You sample five houses. Students often ask if it is "good enough" to take a sample, instead of surveying the entire population. When a sampling bias happens, there can be incorrect conclusions drawn about the population that is being studied. All data that are the result of counting are called quantitative discrete data. The sample probably consists more of people who prefer music because it is a concert event. Conduct the survey by sitting in Central Park on a bench and interviewing every person who sits next to you. Continuous Data Examples: Measurement of height and weight of a student, Daily temperature measurement of a place, Wind speed measured daily, etc. The safest route is to avoid the closest pair of islands. Notice that the frequencies do not add up to the total number of students. A high school principal polls 50 freshmen, 50 sophomores, 50 juniors, and 50 seniors regarding policy changes for after school activities. Also read: 22 Top Data Science Books Learn Data Science Like an Expert. For example, it does not make sense to find an average hair color or blood type. Data are individual items of information that come from a population or sample. The actual process of sampling causes sampling errors. Press ENTER. Points in a graph of the discrete function remain unconnected. Position 1 is less than the distance from G to H in Position 2. The data he collects are summarized in the histogram. For example, suppose Lisa wants to form a four-person study group (herself and three other people) from her pre-calculus class, which has 31 members not including Lisa. The chart in Figure \(\PageIndex{6}\) is organized by the size of each wedge, which makes it a more visually informative graph than the unsorted, alphabetical graph in Figure \(\PageIndex{6}\). B. Just as there is variation in data, there is variation in samples. Keep counting ten quiz scores and recording the quiz score until you have a sample of 12 quiz scores. and it is subdivided into nominal and ordinal data. A random number generator is used to pick two of those years. Again, you sample the same five students. Continuous data is the data that can be of any value. Working on data is crucial because we need to figure out what kind of data it is and how to use it to get valuable output out of it. Which pair is farther from camp? Hint: Data that are discrete often start with the words "the number of.". Therefore this is discrete data. Nominal and ordinal data can act as both discrete and continuous. For qualitative data, if the list can be sorted naturally, we further specify it as an ordinal variable. The tables display counts (frequencies) and percentages or proportions (relative frequencies).
Note: randInt(0, 30, 3) will generate 3 random numbers. The numbers of hotels in cities Choose the correct answer below. For this example, suppose Lisa chooses to generate random numbers from a calculator. Three cell phone towers form APQR. The data are discrete because the data can only take on specific values. O A. Nominal Data is used to label variables without any order or quantitative value. Solution: - Data : The capacities of different hotels. Neither would be wrong, however.
Section 1-2 Practice Problems Flashcards | Quizlet However, if two or more of you are taking the same data and get very different results, it is time for you and the others to reevaluate your data-taking methods and your accuracy. This particular bar graph in Figure \(\PageIndex{4}\) can be difficult to understand visually. It only contains finite values, the subdivision of which is not possible. According to a report, today, at least 2.5 quintillion bytes of data are produced per day. State whether the data described below are discrete or continuous, and explain why. You cannot expect your brain to work nicely with hundreds of thoughts, it will only create a mess. Quantitative data can be used for statistical manipulation. pair starts due east and then turns 50 toward north. Random sampling methods include simple random sampling, stratified sampling, cluster sampling, and systematic sampling. The type of data that has clear spaces between values is discrete data. a. stratified; b. cluster; c. stratified; d. systematic; e. simple random; f.convenience. It may take any numeric value, within a potential value range of finite or infinite. Explain your reasoning. It is not possible to measure qualitative data in terms of. Continuous data. The second pair starts due west and then turns 40 toward south. 5. The amount a person grew (in height) in a year. Confounding: When the effects of multiple factors on a response cannot be separated. Step 2: Discrete and continuous data. Q: State whether the data below are discrete or continuous, explain why. The first Instructions: Use the Random Number Generator to pick samples. Arrow over to PRB. It is better for the person conducting the survey to select the sample respondents. Finite values have discrete data. A. Doreen's sample will be different from Jung's sample. Here are a few steps to prepare well for your exam which has statistics as a part of the course. Determine whether the given value is from a discrete or continuous data set. Press ENTER. Press ENTER 15 times and record the numbers. B. Statistics involves organizing, analyzing, interpreting, and representing data. the data can only take on specific values . You can go for many of the career options if you pursue stats, you can get detailed information about all of the above-mentioned choices and also many more careers on the online website of Vedantu which tells the full forms and also the detailed explanation of each one of them. Over time, some continuous data can change. Discrete. To determine the proportion of people taking public transportation to work, survey 20 people in New York City. For example, the number of subjects in a course, the number of families living in a block, the number of digits in a code, etc. Using a calculator, random numbers are generated and a student from a particular discipline is selected if he or she has a corresponding number. 2003-2023 Chegg Inc. All rights reserved. This data is so important for us that it becomes important to handle and store it properly, without any error. Amount of money, pulse rate, weight, number of people living in your town, and number of students who take statistics are examples of quantitative data. You may wrap around (go back to the beginning). Displaying percentages along with the numbers is often helpful, but it is particularly important when comparing sets of data that do not have the same totals, such as the total enrollments for both colleges in this example. If you feel tired at the moment, even that too is fine. Below are tables comparing the number of part-time and full-time students at De Anza College and Foothill College enrolled for the spring 2010 quarter. Rational Numbers Between Two Rational Numbers, XXXVII Roman Numeral - Conversion, Rules, Uses, and FAQs, Find Best Teacher for Online Tuition on Vedantu. In other words, each sample of the same size has an equal chance of being selected. The durations of a chemical reaction comma repeated .
Determine whether the data are from discrete data or continuous data set. Quick Check Introduction to Data Science. Items a, e, f, k, and l are quantitative discrete; items d, j, and n are quantitative continuous; items b, c, g, h, i, and m are qualitative. Biased samples that are not representative of the population give results that are inaccurate and not valid. These data consist of audio, images, symbols, or text. There are many different potential problems that can affect the reliability of a sample. we conducted an additional simulated control chart analysis to determine whether detection of this normal . If these data-driven topics got you interested in pursuing professional courses or a career in the field of Data Science. Both samples are biased. Those 100 students are the sample. The second sample is taken using a list of senior citizens who take P.E. It includes only those values which are separate and can only be counted in whole numbers or integers, which means that the data can not be split into fractions or decimals. These 18 quiz scores are a stratified sample. 3. The sample probably doesnt represent the entire fan base and is probably biased towards people who would prefer music. The duration of movies in minutes A.The data are continuous because the data can take on any value in an interval. We all know that time is very important, it doesnt wait for anyone. Those numbers picked from the first department, picked from the second department, and so on represent the members who make up the stratified sample. It is classified into two broad categories: qualitative data and quantitative data. B. B.The data are discrete because the data can only take on specific values. While working on these data, it is important to know the types of data to process them and get the right results. Which is the safest route for the ship? The data will be quantitative, say 2+3 (=5) apples. B. The data are discrete because the data can . The size of a sample (often called the number of observations) is important. A random sample is a representative group from the population chosen by using a method that gives each individual in the population an equal chance of being included in the sample. The data are continuous because the data can take on any value in an interval. If there is a repeat press ENTER again. Besides herself, Lisas group will consist of Marcierz, Cuningham, and Cuarismo. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data. A local radio station has a fan base of 20,000 listeners. Why or why not? (2012), D is the discrete character data, z is a particular character mapping, and are the parameters of the hOUwie model. These kinds of data can be considered in-between qualitative and quantitative data.
Solved state whether the data is continous or discrete The | Chegg.com This data helps a company analyze its business, design its strategies, and help build a successful data-driven decision-making process. the number of data values is increased), their sample results (the average amount of time a student sleeps) might be closer to the actual population average. This website is using a security service to protect itself from online attacks. Get Into Data Science From Non IT Background, Data Science Solving Real Business Problems, Understanding Distributions in Statistics, Major Misconceptions About a Career in Business Analytics, Business Analytics and Business Intelligence Possible Career Paths for Analytics Professionals, Difference Between Business Intelligence and Business Analytics. The number of classes a student missed. Ordinal data is qualitative data for which their values have some kind of relative position. The percent columns make comparing the same categories in the colleges easier. O C. The data are continuous because the data can take on any value in an interval. ), Marital status (Single, Widowed, Married), When companies ask for feedback, experience, or satisfaction on a scale of 1 to 10, Letter grades in the exam (A, B, C, D, etc. To find the average annual income of all adults in the United States, sample U.S. congressmen. O A. To choose a systematic sample, randomly select a starting point and take every nth piece of data from a listing of the population. A type of sampling that is non-random is convenience sampling. The job of the statistician is to see through the variability and draw appropriate conclusions. True random sampling is done with replacement. To choose a cluster sample, divide the population into clusters (groups) and then randomly select some of the clusters. Cloudflare Ray ID: 7a2992ec2e151da5 State whether the data described below are discrete or continuous, and explain why The speeds of the different people walking in a park Choose the correct answer below. D. The If the survey is done well, the answer is yes. Types of soups, nuts, vegetables and desserts are qualitative data because they are categorical.
The graph in Figure \(\PageIndex{5}\) is a Pareto chart.
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