QUESTIONState whether the data described below are discrete or continuous, and explain why. Create a cluster sample by considering each state as a stratum (group). O C. Here are a few steps to prepare well for your exam which has statistics as a part of the course. Your answer is correct. Sampling without replacement instead of sampling with replacement becomes a mathematical issue only when the population is small. The data are continuous because the data can only take on specific values. 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. The data are the number of books students carry in their backpacks. Nominal data.Ordinal data.Discrete data.Continuous data. C. It also could not be used if the percentages added to less than 100%. Starting with that student, every 50th student is chosen until 75 students are included in the sample. Also read: 22 Top Data Science Books Learn Data Science Like an Expert. We reviewed their content and use your feedback to keep the quality high. Ltd. All rights reserved. In this article, we have discussed the data types and their differences. The data are discrete because the data can only take on specific values. Divide 84 a money box contains 1 coins, 2 coins, 5 coins and 10 coins 10 coins is four times the number of 1 coins. the type of car you drive. ), Education Level (Higher, Secondary, Primary), Total numbers of students present in a class, The total number of players who participated in a competition. While working on these data, it is important to know the types of data to process them and get the right results. The weights (in pounds) of their backpacks are 6.2, 7, 6.8, 9.1, 4.3. For the purpose of analysis, data are presented as the facts and figures collected together. As a class, determine whether or not the following samples are representative. ), 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. 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 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. The exact lengths (in kilometers) of the ocean coastlines of different countries. feet, 180 sq. b. A large ship is sailing between three small islands. State whether the data described below are discrete or continuous, and 3. A student interviews classmates in his algebra class to determine how many pairs of jeans a student owns, on the average. Try this experiment twice. Question: CS State whether the data described below are discrete or continuous, and explain why. O C. The data are continuous because the data can. The data are the weights of backpacks with books in them. Suppose we take two different samples. Name data sets that are quantitative discrete, quantitative continuous, and qualitative. discrete because the data can only take on specific values . The two numbers are for two of the columns. Examples: crash testing cars or medical testing for rare conditions, Undue influence: collecting data or asking questions in a way that influences the response. However the third random number, 0.14669, contains 14 (the fourth random number also contains 14), the fifth random number contains 05, and the seventh random number contains 04. 2013. Other well-known random sampling methods are the stratified sample, the cluster sample, and the systematic sample. 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. Working with data requires good data science skills and a deep understanding of different types of data and how to work with them. The graph in Figure \(\PageIndex{5}\) is a Pareto chart. The data will be quantitative, say 2+3 (=5) apples. To find the average annual income of all adults in the United States, sample U.S. congressmen. Record the quiz scores that correspond to these numbers. The following pie charts have the Other/Unknown category included (since the percentages must add to 100%). Ordinal data have natural ordering where a number is present in some kind of order by their position on the scale. MAT 131 - Descriptive Statistics Ch. 1.2 - Types of Data - Quizlet Number the population 120,000 and then use a simple random sample to pick a number that represents the first name in the sample. Probably not. And this is the reason why most students find it to be an interesting subject. . Each student in the following samples is asked how much tuition he or she paid for the Fall semester. Students often ask if it is "good enough" to take a sample, instead of surveying the entire population. 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. According to a report, today, at least 2.5 quintillion bytes of data are produced per day. Grouped distribution of continuous data tabulation frequencies is performed against a value group. Do not automatically assume that the study is good, but do not automatically assume the study is bad either. A high school educational researcher interviews 50 high school female teachers and 50 high school male teachers. A. The total number of students in a class is an example of discrete data. Since these samples are not representative of the entire population, is it wise to use the results to describe the entire population? It is understandable that it must be making you feel nervous right now but your emotions are valid! The results of convenience sampling may be very good in some cases and highly biased (favor certain outcomes) in others. Statistics involves organizing, analyzing, interpreting, and representing data. It only contains finite values, the subdivision of which is not possible. But still, their samples would be, in all likelihood, different from each other. Suppose Doreen and Jung both decide to study the average amount of time students at their college sleep each night. The data are discrete because the data can only take on specific values. Non-response or refusal of subject to participate: The collected responses may no longer be representative of the population. categorical, quantitative discrete or quantitative continuous. The type of data that has clear spaces between values is discrete data. Quantitative data can be expressed in numerical values, making it countable and including statistical data analysis. The safest route is to avoid the closest pair of islands. 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. The data are because.continuous the data can only take on specific values C. (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.) The data are continuous because the data can take on any value in an interval . When a sampling bias happens, there can be incorrect conclusions drawn about the population that is being studied. Determine whether the data are from discrete data or continuous data set. we conducted an additional simulated control chart analysis to determine whether detection of this normal . amount of money (in dollars) won playing poker, IQ scores (This may cause some discussion.). 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. Discrete Data Examples: The number of students in a class, the number of chocolates in a bag, the number of strings on the guitar, the number of fishes in the aquarium, etc. The two-digit number 14 corresponds to Macierz, 05 corresponds to Cuningham, and 04 corresponds to Cuarismo. Roll one fair die (six-sided) 20 times. 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. There are many different potential problems that can affect the reliability of a sample. If quantitative, state whether it's discrete or continuous. Look at Figures \(\PageIndex{3}\) and \(\PageIndex{4}\) and determine which graph (pie or bar) you think displays the comparisons better. To choose a cluster sample, divide the population into clusters (groups) and then randomly select some of the clusters. The data are continuous because the data can take Most statisticians use various methods of random sampling in an attempt to achieve this goal. 2013 - 2023 Great Lakes E-Learning Services Pvt. Continuous data. The data are continuous because { "1.2.01:_Levels_of_Measurement" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.
state whether the data is discrete or continuous
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