If you feel like your doubt is stupid and you skip it rather than ask it, it is not the correct approach. Discrete data is data that can only take certain values, while data that can take any value is continuous data. Suppose Doreen and Jung both decide to study the average amount of time students at their college sleep each night. Your IP: B. This site is using cookies under cookie policy . O C. Sampling data should be done very carefully. The numbers of majors offered by colleges Choose the correct answer below. A medical researcher interviews every third cancer patient from a list of cancer patients at a local hospital. Press ENTER. When a sampling bias happens, there can be incorrect conclusions drawn about the population that is being studied. Just know that you have prepared and worked hard for this. It only contains finite values, the subdivision of which is not possible. The measure of Ris 5 greater than the measure of ZO. The random numbers 0.94360 and 0.99832 do not contain appropriate two digit numbers. It is better for the person conducting the survey to select the sample respondents. No. Statistics and Probability questions and answers, state whether the data is continous or discrete The durations of In a college population of 10,000 people, suppose you want to pick a sample of 1,000 randomly for a survey. You sample five houses. It is further classified as discrete data and continuous data. Solution: - Data : The capacities of different hotels. If you sample without replacement, then the chance of picking the first person is ten out of 25, and then the chance of picking the second person (who is different) is nine out of 24 (you do not replace the first person). The gender of a person, i.e., male, female, or others, is qualitative data. O C. The data are continuous because the data can. 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. Ra Divide into groups of two, three, or four. Sometimes percentages add up to be more than 100% (or less than 100%). a. stratified; b. systematic; c. simple random; d. cluster; e. convenience. CS State whether the data described below are discrete or continuous, and explain why. Determine the correct data type (quantitative or qualitative) for the number of cars in a parking lot. For example, in the case of statistics, algebra is a good option to learn before starting your statistics course. Can I get some help? These 15 quiz scores are the systematic sample. Finite values have discrete data. Those 100 students are the sample. According to a report, today, at least 2.5 quintillion bytes of data are produced per day. LBCC Distance Learning (DL) program data in 2010-2011. lastbaldeagle. data are discrete because the data can take on any value in an feet. Use the column numbers: one through six. O C. C. The data are Data that can take a decimal value and can vary across a range is called . answer below. The data are discrete because the data can only take on specific values. You can specify conditions of storing and accessing cookies in your browser. The station uses convenience sampling and surveys the first 200 people they meet at one of the stations music concert events. Press ENTER and record that number. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. The numbers of programs installed on various computers ANSWERA.) 134.209.154.177 Ordinal data have natural ordering where a number is present in some kind of order by their position on the scale. Record the three quiz scores in column one that correspond to these three numbers. No. LCM of 3 and 4, and How to Find Least Common Multiple, What is Simple Interest? Complex numbers and fluctuating data values that be measured over a defined time frame are referred to as continuous data. The data are discrete because the data can . Indicate whether quantitative data are continuous or discrete. 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. B.The data are discrete because the data can only take on specific values. ), 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. A statistics professor collects information about the classification of her students as freshmen, sophomores, juniors, or seniors. ), Ranking of people in a competition (First, Second, Third, etc. Probably not. Students often ask if it is "good enough" to take a sample, instead of surveying the entire population. B. The second sample is taken using a list of senior citizens who take P.E. The sample probably doesnt represent the entire fan base and is probably biased towards people who would prefer music. You sample five houses. For example, if you randomly sample four departments from your college population, the four departments make up the cluster sample. Points in a graph of the discrete function remain unconnected. Name data sets that are quantitative discrete, quantitative continuous, and qualitative. 13. 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. Is the study impartial? Two positions of an open gate are shown. a. Notice that backpacks carrying three books can have different weights. The discrete data contain the values that fall under integers or whole numbers. Show how you know. And this is the reason why most students find it to be an interesting subject. A student interviews classmates in his algebra class to determine how many pairs of jeans a student owns, on the average. Discrete data is a sort of numerical data that consists of full, concrete numbers that have particular and fixed data values that are determined by counting. You sample five gyms. a chemical reaction comma repeated several times Choose the correct Notice that the frequencies do not add up to the total number of students. These data are used for observation like customer satisfaction, happiness, etc., but we cant do any arithmetical tasks on them. This data helps market researchers understand the customers tastes and then design their ideas and strategies accordingly. You measure continuous data. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. The data she collects are summarized in the pie chart Figure \(\PageIndex{1}\). For the purpose of analysis, data are presented as the facts and figures collected together. The distance from G to H in It might sound a bit weird but do not burden yourself with new topics before the exam. To determine the proportion of people taking public transportation to work, survey 20 people in New York City. These values do not have to be complete numbers, but they are values that are fixed. O A. One-third of a number when decreased by 2 equals one-fifth of the nimenbe Find the number. But graphs can be even more helpful in understanding the data. Besides herself, Lisas group will consist of Marcierz, Cuningham, and Cuarismo. To choose a systematic sample, randomly select a starting point and take every nth piece of data from a listing of the population. The data are continuous because the data can take 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. The size of a sample (often called the number of observations) is important. the data can only take on specific values . The Literary Digest Poll, Virtual Laboratories in Probability and Statistics, Gallup Presidential Election Trial-Heat Trends, 19362008, Gallup Politics. It is easy in many cases, discrete data is preceded by the number of, which makes the differentiation of results easier. Lisa reads two-digit groups until she has chosen three class members (that is, she reads 0.94360 as the groups 94, 43, 36, 60). The measure of ZQ is 10 less than the measure of LP. Different types of data are used in research, analysis, statistical analysis, data visualization, and data science. The bar graph is used to graphically represent discrete data. A bar graph is appropriate to compare the relative size of the categories. Two graphs that are used to display qualitative data are pie charts and bar graphs. The data are discrete because the data can only take on specific values. QUESTIONState whether the data described below are discrete or continuous, and explain why. feet, 160 sq. 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. Ungrouped frequency distribution of discrete data is performed against a single value. Two students carry three books, one student carries four books, one student carries two books, and one student carries one book. on any value in an interval . This particular bar graph in Figure \(\PageIndex{4}\) can be difficult to understand visually. A histogram is used to display quantitative data: the numbers of credit hours completed. The circumferences (in inches) of people's heads Choose the correct answer below. and it is subdivided into nominal and ordinal data. a. A. Confounding: When the effects of multiple factors on a response cannot be separated. the type of car you drive. 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. Weights are quantitative continuous data because weights are measured. Using a calculator, random numbers are generated and a student from a particular discipline is selected if he or she has a corresponding number. air. State whether each situation is categorical or quantitative. It only contains finite values, the subdivision of which is not possible. A high school counselor uses a computer to generate 50 random numbers and then picks students whose names correspond to the numbers. An administrative assistant is asked to stand in front of the library one Wednesday and to ask the first 100 undergraduate students he encounters what they paid for tuition the Fall semester. Press ENTER 2 more times (even the repeats). All members of the four departments with those numbers are the cluster sample. One gym has 12 machines, one gym has 15 machines, one gym has ten machines, one gym has 22 machines, and the other gym has 20 machines. Blood type might be AB+, O-, or B+. The numbers of hotels in cities Choose the correct answer below. This is completely natural. The data are discrete because the data can only take on specific values. O A. Determine whether the data described below are qualitative or quantitative and explain why: . This data is so important for us that it becomes important to handle and store it properly, without any error. Statistics and Probability questions and answers, CS State whether the data described below are discrete or continuous, and explain why. Required fields are marked *. The triangles show the position of the gate in relation to its closed position. Most of these students are, more than likely, paying more than the average part-time student for their books. Work more on basics as they form the basis for many other concepts. The volume of cola in a can is 11.8 oz. B. 26. A completely random method is used to select 75 students. 2003-2023 Chegg Inc. All rights reserved. The data are discrete because the data can take on any value in an interval. O A. Therefore, adjustment of the differential equations system under such data . The data he collects are summarized in the histogram. The examples you have seen in this book so far have been small. Record these numbers. In this article, we have discussed the data types and their differences. Conduct the survey by sitting in Central Park on a bench and interviewing every person who sits next to you. B. Which pair is farther from camp? B. When you analyze data, it is important to be aware of sampling errors and nonsampling errors. The data will be quantitative, say 2+3 (=5) apples. It is understandable that it must be making you feel nervous right now but your emotions are valid! 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. All you can do right now is to just take a deep breath and believe in yourself! A large ship is sailing between three small islands. 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 \(\PageIndex{6}\). c. The data are continuous because the data can take on any value in an interval. However, generally, we use age as a discrete variable. Besides simple random sampling, there are other forms of sampling that involve a chance process for getting the sample. For column 1, Press 5:randInt( and enter 1,10). The data are continuous because the data can take on any value in an interval. One student has a red backpack, two students have black backpacks, one student has a green backpack, and one student has a gray backpack. If Doreen and Jung took larger samples (i.e. Do you think that either of these samples is representative of (or is characteristic of) the entire 10,000 part-time student population? To do so, the ship must sail between two pairs of islands, avoiding sailing between a third p Also, in both cases, not all students have a chance to be in either sample. Discrete vs continuous data are two broad categories of numeric variables. Experts are tested by Chegg as specialists in their subject area. So, you will get the result too! You sample five students. Sampling without replacement instead of sampling with replacement becomes a mathematical issue only when the population is small. You can email the site owner to let them know you were blocked. The data are discrete because the data can only take on specific values. The number of books in a rack is a finite countable number. Be aware that as you take data, your data may vary somewhat from the data someone else is taking for the same purpose.
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