Answered: State whether the data described below | bartleby Can I get some help? Quick Check Introduction to Data Science. Notice that backpacks carrying three books can have different weights. Solved State whether the data described below are discrete - Chegg From that number, count ten quiz scores and record that quiz score. { "1.2.01:_Levels_of_Measurement" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()" }, { "00:_Front_Matter" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "1.00:_Introduction" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "1.01:_Descriptive_and_Inferential_Statistics" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "1.02:_Variables_and_Types_of_Data" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "1.03:_Data_Collection_and_Sampling_Techniques" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", 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"authorname:openstax", "transcluded:yes", "showtoc:no", "license:ccby", "source[1]-stats-705", "program:openstax", "licenseversion:40", "source@https://openstax.org/details/books/introductory-statistics" ], https://stats.libretexts.org/@app/auth/3/login?returnto=https%3A%2F%2Fstats.libretexts.org%2FCourses%2FLas_Positas_College%2FMath_40%253A_Statistics_and_Probability%2F01%253A_The_Nature_of_Statistics%2F1.02%253A_Variables_and_Types_of_Data, \( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}}}\) \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash{#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)\(\newcommand{\AA}{\unicode[.8,0]{x212B}}\), of Students at De Anza College Fall Term 2007 (Census Day), 1.1: Descriptive and Inferential Statistics, Percentages That Add to More (or Less) Than 100%, http://www.well-beingindex.com/default.asp, http://www.well-beingindex.com/methodology.asp, http://www.gallup.com/poll/146822/gaquestions.aspx, http://www.math.uah.edu/stat/data/LiteraryDigest.html, http://www.gallup.com/poll/110548/ga9362004.aspx#4, http://de.lbcc.edu/reports/2010-11/fhts.html#focus, http://poq.oxfordjournals.org/content/70/5/759.full, source@https://openstax.org/details/books/introductory-statistics, status page at https://status.libretexts.org, Students who intend to transfer to a 4-year educational institution. Non-response or refusal of subject to participate: The collected responses may no longer be representative of the population. These data dont have any meaningful order; their values are distributed into distinct categories. Create a stratified sample by column. Surveys are typically done without replacement. Examples: crash testing cars or medical testing for rare conditions, Undue influence: collecting data or asking questions in a way that influences the response. Statistics involves organizing, analyzing, interpreting, and representing data. ), 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. Data that can take a decimal value and can vary across a range is called . Suppose we take two different samples. Press ENTER 15 times and record the numbers. State whether the data described below are discrete - Course Hero We might make different choices of what we think is the best graph depending on the data and the context. The station uses convenience sampling and surveys the first 200 people they meet at one of the stations music concert events. Each student is chosen using simple random sampling. Doreen and Jung each take samples of 500 students. Use the column numbers: one through six. The data are continuous because the data can take on any value in an interval . You must choose 400 names for the sample. Self-selected samples: Responses only by people who choose to respond, such as call-in surveys, are often unreliable. 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. State whether the data described below are discrete or continuous, and explain why. The data are discrete because the data can only take on specific values. The data will be quantitative, say 2+3 (=5) apples. This site is using cookies under cookie policy . Data that can only take on certain values are discrete data. 2013. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data. Most data can be put into the following categories: Qualitative data are the result of categorizing or describing attributes of a population. four children shared a two third liter bottle of drink equal.how much did each child drink , two pairs of hikers leave the same camp heading in opposite divections. The total number of students in a class is an example of discrete data. Answered: State whether the data described below | bartleby Quantitative data may be either discrete or continuous. It is countable. The data are the areas of lawns in square feet. The first sample probably consists of science-oriented students. Solved CS State whether the data described below are - Chegg We are interested in the average amount of money a part-time student spends on books in the fall term. Continuous data are in the form of fractional numbers. Press ENTER. For any particular sample of 1,000, if you are sampling with replacement. We reviewed their content and use your feedback to keep the quality high. For example, a computer software store conducts a marketing study by interviewing potential customers who happen to be in the store browsing through the available software. Record the number. D. The Surveys mailed to households and then returned may be very biased (they may favor a certain group). The data she collects are summarized in the pie chart Figure \(\PageIndex{1}\). 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. This particular bar graph in Figure \(\PageIndex{4}\) can be difficult to understand visually. Points in a graph of the discrete function remain unconnected. They may be related (correlated) because of their relationship through a different variable. A more technological way is for Lisa to first list the last names of the members of her class together with a two-digit number, as in Table \(\PageIndex{2}\): Lisa can use a table of random numbers (found in many statistics books and mathematical handbooks), a calculator, or a computer to generate random numbers. State whether the data described below are discrete or continuous, and explain why. The examples you have seen in this book so far have been small. In some situations, having small samples is unavoidable and can still be used to draw conclusions. 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. Discrete and Continuous Data - Definitions, Examples - VEDANTU C. The data are In statistics, a sampling bias is created when a sample is collected from a population and some members of the population are not as likely to be chosen as others (remember, each member of the population should have an equally likely chance of being chosen). The class boundaries are 10 to less than 13, 13 to less than 16, 16 to less than 19, 19 to less than 22, and 22 to less than 25. Do you think that this sample is representative of (or is characteristic of) the entire 20,000 listener population? The data are discrete because the data can only take on specific values. Asking all 20,000 listeners is an almost impossible task. The random numbers 0.94360 and 0.99832 do not contain appropriate two digit numbers. B. It helps you in saving time later as you already have some knowledge about algebra. Determine whether the given value is from a discrete or continuous data feet, 180 sq. The data are discrete because the data can take on any value in an interval. This is completely natural. Samples that contain different individuals result in different data. Which two towers are closest together. 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. Ltd. All rights reserved. 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. Examples are lengths, temperature, etc. and the Michigan State University Institutional Animal Care and Use Committee prior to the start of data collection. For the purpose of analysis, data are presented as the facts and figures collected together. Record the number and the first quiz score. answer below. What type of data does this graph show? Continuous data: When numerical data has . The duration of movies in minutes A.The data are continuous because the data can take on any value in an interval. A discrete data set because there are a finite number of possible values. Ordinal data is qualitative data for which their values have some kind of relative position. It can be the version of an android phone, the height of a person, the length of an object, etc. By using simple random sampling, select states to be part of the cluster. But still, their samples would be, in all likelihood, different from each other. Create a cluster sample by picking two of the columns. Which pair is farther from camp? Difference Between Continuous and Discrete Data, Questions on Discrete Data Continuous Data. the number of classes you take per school year. Keep counting ten quiz scores and recording the quiz score until you have a sample of 12 quiz scores. Quantitative data, on the other hand, is one that contains numerical values and uses a scope. a chemical reaction comma repeated several times Choose the correct a. It is a good idea to look at a variety of graphs to see which is the most helpful in displaying the data. 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. Besides the chemistry course, some of them are also taking first-term calculus. O A. You sample five students. Asking all 10,000 students is an almost impossible task. It only contains finite values, the subdivision of which is not possible. Each travels 2 miles, then changes direction and travels 1.2 miles. There are many different potential problems that can affect the reliability of a sample. Conduct the survey by sitting in Central Park on a bench and interviewing every person who sits next to you. Whenever you face any problem the best solution is consulting the concerned teacher, you should never hesitate to ask for doubts. Causality: A relationship between two variables does not mean that one causes the other to occur. 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. air. The color of hair can be considered nominal data, as one color cant be compared with another color. Discrete. Record the number. the distance it is from your home to the nearest grocery store. First, we use convenience sampling and survey ten students from a first term organic chemistry class. Look at Figures \(\PageIndex{3}\) and \(\PageIndex{4}\) and determine which graph (pie or bar) you think displays the comparisons better. Two graphs that are used to display qualitative data are pie charts and bar graphs. 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. Every value within a range is included in continuous data. The safest route is to avoid the closest pair of islands. Again, you sample the same five students. As a class, determine whether or not the following samples are representative. Do not automatically assume that the study is good, but do not automatically assume the study is bad either.

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