A random number generator is used to pick two of those years. Doreen and Jung each take samples of 500 students. 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. The data are continuous because the data can take on any value in an interval. The data are discrete because the data can take on any value in an interval. The circumferences (in inches) of people's heads Choose the correct answer below. Question: State whether the data described below are discrete or continuous, and explain why. 2003-2023 Chegg Inc. All rights reserved. Sampling without replacement instead of sampling with replacement becomes a mathematical issue only when the population is small. The data are because.continuous the data can take on any value in an interval B. Collecting data carelessly can have devastating results. discrete because the data can only. Hint: Data that are discrete often start with the words "the number of.". The numbers of majors offered by colleges Choose the correct answer below. Solved State whether the data described below are discrete - Chegg To choose a simple random sample of size three from the other members of her class, Lisa could put all 31 names in a hat, shake the hat, close her eyes, and pick out three names. 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. B. Conduct the survey by sitting in Central Park on a bench and interviewing every person who sits next to you. Each method has pros and cons. data are discrete because the data can take on any value in an A. A large ship is sailing between three small islands. The type of data that has clear spaces between values is discrete data. If quantitative, state whether it's discrete or continuous. For example, you could stratify (group) your college population by department and then choose a proportionate simple random sample from each stratum (each department) to get a stratified random sample. In polling, samples that are from 1,200 to 1,500 observations are considered large enough and good enough if the survey is random and is well done. Your instructor will give each group one six-sided die. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data. What type of data does this graph show? Since this is the case, sampling without replacement is approximately the same as sampling with replacement because the chance of picking the same individual more than once with replacement is very low. . Is the study impartial? Dynamic models of epidemiology in discrete time taking into account If Doreen and Jung took larger samples (i.e. Continuous data is the data that can be of any value. There are particular calculators for different statistics exams and having good knowledge about their use and implementation would be great. The exact lengths (in kilometers) of the ocean coastlines of different countries is a continuous variable because it can take on any value in an interval. For accuracy, carry the decimal answers to four decimal places. That is, once a member is picked, that member goes back into the population and thus may be chosen more than once. Gathering information about an entire population often costs too much or is virtually impossible. Your IP: Step 2: Discrete and continuous data. To determine the average cost of a two-day stay in a hospital in Massachusetts, survey 100 hospitals across the state using simple random sampling. Each random number may only contribute one class member. Data that can only take on certain values are discrete data. Frequently Asked Questions, Pew Research Center for the People & the Press, www.people-press.org/methodolwer-your-polls (accessed May 1, 2013). The colors red, black, black, green, and gray are qualitative data. The data are continuous because the data can take on any value in an interval. state whether the data is continous or discrete The durations of The data she collects are summarized in the pie chart Figure \(\PageIndex{1}\). Determine whether the data are from discrete data or continuous data set. Nominal data.Ordinal data.Discrete data.Continuous data. You can also visit their website. The data are the number of machines in a gym. All members of the four departments with those numbers are the cluster sample. State whether the data described below are discrete or CS State whether the data described below are discrete or continuous, and explain why. Additional Resources Hint: Data that are discrete often start with the words "the number of." the number of pairs of shoes you own. The numbers of countries in the world in different years Choose the correct answer below. The easiest method to describe is called a simple random sample. A high school counselor uses a computer to generate 50 random numbers and then picks students whose names correspond to the numbers. Notice that backpacks carrying three books can have different weights. Do you think that this sample is representative of (or is characteristic of) the entire 20,000 listener population? pair starts due east and then turns 50 toward north. The data are continuous because where n is the number of tips in the phylogeny ( ) , P is the continuous trait value of each species, and Q is the expected value of each species given the continuous trait model calculated following Equation (11) of Beaulieu et al. These 15 quiz scores are the systematic sample. The LibreTexts libraries arePowered by NICE CXone Expertand are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. - Example, Formula, Solved Examples, and FAQs, Line Graphs - Definition, Solved Examples and Practice Problems, Cauchys Mean Value Theorem: Introduction, History and Solved Examples. State whether the data described below are discrete or continuous and explain why The amounts of time that different brands' batteries last in a CD player. For example, if the population is 25 people, the sample is ten, and you are sampling with replacement for any particular sample, then the chance of picking the first person is ten out of 25, and the chance of picking a different second person is nine out of 25 (you replace the first person). The time(in minutes) it takes The time(in minutes) it takes A: It is given that the time (in minutes) it takes different students to drive to school from home. Section 1-2 Practice Problems Flashcards | Quizlet Record the number. The number of classes a student missed. A local radio station has a fan base of 20,000 listeners. If you feel like your doubt is stupid and you skip it rather than ask it, it is not the correct approach. Step 2: Discrete and continuous data. Doreen's sample will be different from Jung's sample. Collaborative Exercise 1.2. O A. Nominal Data is used to label variables without any order or quantitative value. The station uses convenience sampling and surveys the first 200 people they meet at one of the stations music concert events. The weights (in tons) of the trees in a forestANSWERA.) In one study, eight 16 ounce cans were measured and produced the following amount (in ounces) of beverage: 15.8; 16.1; 15.2; 14.8; 15.8; 15.9; 16.0; 15.5. If they are not, discuss the reasons. Press ENTER two more times for the other 2 random numbers. State whether the data described below are discrete or continuous, and In this article, we have discussed the data types and their differences. The data are continuous because the data can only take on specific values. This is completely natural. The random numbers 0.94360 and 0.99832 do not contain appropriate two digit numbers. All you can do right now is to just take a deep breath and believe in yourself! Press ENTER. Press ENTER 2 more times (even the repeats). Problems with samples: A sample must be representative of the population. These types of data are sorted by category, not by number. A high school principal polls 50 freshmen, 50 sophomores, 50 juniors, and 50 seniors regarding policy changes for after school activities. a. On the other hand, if we count large quantities of any discrete entity. Random sampling methods include simple random sampling, stratified sampling, cluster sampling, and systematic sampling. feet, 180 sq. We might make different choices of what we think is the best graph depending on the data and the context. This is important to know when we think about what the data are telling us. O A. The two-digit number 14 corresponds to Macierz, 05 corresponds to Cuningham, and 04 corresponds to Cuarismo. Note: randInt(0, 30, 3) will generate 3 random numbers. Ungrouped frequency distribution of discrete data is performed against a single value. You sample the same five students. Many of these students are taking first term calculus in addition to the organic chemistry class. A stated earlier, Lengths are in general, continuous variables. The data are continuous because the data can take Those numbers picked from the first department, picked from the second department, and so on represent the members who make up the stratified sample. When a car is randomly selected, it is found to have 3 wipers. To choose a systematic sample, randomly select a starting point and take every nth piece of data from a listing of the population. The numbers of hotels in cities Choose the correct answer below. These data consist of audio, images, symbols, or text. True random sampling is done with replacement. Students often ask if it is "good enough" to take a sample, instead of surveying the entire population. The three cans of soup, two packages of nuts, four kinds of vegetables and two desserts are quantitative discrete data because you count them. Each student is chosen using simple random sampling. the chance of picking the first person is 1,000 out of 10,000 (0.1000); the chance of picking a different second person for this sample is 999 out of 10,000 (0.0999); the chance of picking the same person again is 1 out of 10,000 (very low). Determine whether the value is from a discrete or continuous data set Read the study carefully to evaluate the work. Quantitative data can be expressed in numerical values, making it countable and including statistical data analysis. The second sample is taken using a list of senior citizens who take P.E. discrete because the data can only take on specific values . Compare the fractions 9/25 and 9/24. The data are continuous because the data can take Probably not. (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.) First, we use convenience sampling and survey ten students from a first term organic chemistry class. 4 Types of Data - Nominal, Ordinal, Discrete, Continuous Is Age a Discrete or Continuous Variable? - Statology This data is so important for us that it becomes important to handle and store it properly, without any error. The measure of ZQ is 10 less than the measure of LP. This page titled 1.2: Variables and Types of Data is shared under a CC BY 4.0 license and was authored, remixed, and/or curated by OpenStax via source content that was edited to the style and standards of the LibreTexts platform; a detailed edit history is available upon request. The data are discrete because the data can only take on specific values. Continuous data are in the form of fractional numbers. Tips and Tricks to study Discrete and Continuous Data, Age is discrete data because we could be infinitely precise and use an infinite number of decimal places, rendering age continuous as a result. The exact distances (in centimeters) between the chairs in a college classroom. You sample five houses. B. I want to study the topic of Statistics for my college-level exams? A discrete data set because there are a finite number of possible values. Three cell phone towers form APQR. Results are the outcome of our efforts and if you believe that you have put your best, then you will surely be able to score good marks. Convenience sampling is a nonrandom method of choosing a sample that often produces biased data. The data are continuous because the data can take on any value in an interval. a. stratified; b. cluster; c. stratified; d. systematic; e. simple random; f.convenience. Numeric variables represent characteristics that you can express as numbers rather than descriptive language. State whether the data described below are discrete or? continuous, and Discrete data is data that can only take certain values, while data that can take any value is continuous data. Statistics is a quite tough subject but for those who know how to use their mind, its the best one for them as it involves more practical knowledge and conceptual learning. a. Starting with that student, every 50th student is chosen until 75 students are included in the sample. 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Using a calculator, random numbers are generated and a student from a particular discipline is selected if he or she has a corresponding number. 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. A study is done to determine the average tuition that San Jose State undergraduate students pay per semester. Variation is present in any set of data. What type of data is this? When you analyze data, it is important to be aware of sampling errors and nonsampling errors. Press MATH. Question: State whether the data described below are discrete or continuous, and explain why. For these samples, each member of the population did not have an equally likely chance of being chosen. State whether the data described below are discrete or continuous, and explain why: . The total number of students in a class is an example of discrete data. Solved CS State whether the data described below are - Chegg Create a simple random sample of 15 quiz scores. For example, if you randomly sample four departments from your college population, the four departments make up the cluster sample. This website is using a security service to protect itself from online attacks. The continuous data can be broken down into. O A. Therefore this is discrete data. One student has a red backpack, two students have black backpacks, one student has a green backpack, and one student has a gray backpack. Also, the sample represents only those who showed up to the event earlier than the majority. 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. If these data-driven topics got you interested in pursuing professional courses or a career in the field of Data Science. Indicate whether quantitative data are continuous or discrete. 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. 26. Surveys are typically done without replacement. Also, in both cases, not all students have a chance to be in either sample. Data is classified into 4 types. we conducted an additional simulated control chart analysis to determine whether detection of this normal . Great Learning's Blog covers the latest developments and innovations in technology that can be leveraged to build rewarding careers. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. The data he collects are summarized in the histogram. Have some sleep, its important. Even if Doreen and Jung used the same sampling method, in all likelihood their samples would be different. QUESTIONState whether the data described below are discrete or continuous, and explain why. It answers the questions like how much, how many, and how often. For example, the price of a phone, the computers ram, the height or weight of a person, etc., falls under quantitative data. Data may be classified as qualitative, quantitative continuous, or quantitative discrete. . Continuous data: When numerical data has . State whether the data described below are discrete or continuous and explain why The amounts of time that different - Answered by a verified Tutor . This particular bar graph in Figure \(\PageIndex{4}\) can be difficult to understand visually. Answered: State whether the data described below | bartleby You'll get a detailed solution from a subject matter expert that helps you learn core concepts. The volume of cola in a can is 11.8 oz. Qualitative data are generally described by words or letters. Determine the type of sampling used (simple random, stratified, systematic, cluster, or convenience). The action you just performed triggered the security solution. The road from A to E and the road from C and D are perpendicular and intersect at point F. Theresa's house is at C, 500 feet from the intersection. O A. D. The The data are discrete because the data can only take on specific values. novel method for jointly modeling the evolution of discrete and We reviewed their content and use your feedback to keep the quality high. The freshman, sophomore, junior, and senior years are numbered one, two, three, and four, respectively. Height is continuous but we sometimes don't really worry too much about minor variations and club heights into a set of discrete data instead. The first A. B. You can specify conditions of storing and accessing cookies in your browser. Procrastination isnt even the last option if you are preparing for a statistics exam. Statistics involves organizing, analyzing, interpreting, and representing data. Determine whether the value is from a discrete or continuous It is from a discrete data set because the number of possible values is infinite and countable. Complex numbers and fluctuating data values that be measured over a defined time frame are referred to as continuous data. State whether the data described below are discrete or continuous, and explain why. The graph in Figure \(\PageIndex{5}\) is a Pareto chart. 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? You may wrap around (go back to the beginning). the number of classes you take per school year. The following pie charts have the Other/Unknown category included (since the percentages must add to 100%). The other examples of qualitative data are : Difference between Nominal and Ordinal Data, Difference between Discrete and Continuous Data, 22 Top Data Science Books Learn Data Science Like an Expert, PGP In Data Science and Business Analytics, PGP In Artificial Intelligence And Machine Learning, Nominal data cant be quantified, neither they have any intrinsic ordering, Ordinal data gives some kind of sequential order by their position on the scale, Nominal data is qualitative data or categorical data, Ordinal data is said to be in-between qualitative data and quantitative data, They dont provide any quantitative value, neither can we perform any arithmetical operation, They provide sequence and can assign numbers to ordinal data but cannot perform the arithmetical operation, Nominal data cannot be used to compare with one another, Ordinal data can help to compare one item with another by ranking or ordering, Discrete data are countable and finite; they are whole numbers or integers, Continuous data are measurable; they are in the form of fractions or decimal, Discrete data are represented mainly by bar graphs, Continuous data are represented in the form of a histogram, The values cannot be divided into subdivisions into smaller pieces, The values can be divided into subdivisions into smaller pieces, Discrete data have spaces between the values, Continuous data are in the form of a continuous sequence, Opinion on something (agree, disagree, or neutral), Colour of hair (Blonde, red, Brown, Black, etc. It is further classified as discrete data and continuous data. Statistical data needs to be critically analyzed, not simply accepted. Weights are quantitative continuous data because weights are measured. We have grown leaps and bounds to be the best Online Tuition Website in India with immensely talented Vedantu Master Teachers, from the most reputed institutions. Again, you sample the same five students. B. These data are represented mainly by a bar graph, number line, or frequency table. We all know that time is very important, it doesnt wait for anyone. Neither would be wrong, however. But still, their samples would be, in all likelihood, different from each other. a. This table displays six sets of quiz scores (each quiz counts 10 points) for an elementary statistics class. Then survey every U.S. congressman in the cluster. Which pair is farther from camp? You are going to use the random number generator to generate different types of samples from the data. Press ENTER. The option "B" is correct i.e. Nominal Data is used to label variables without any order or quantitative value. We choose ten different part-time students from the disciplines of chemistry, math, English, psychology, sociology, history, nursing, physical education, art, and early childhood development.

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