Ducks in a pond are discrete data because the number of ducks is a finite number. The data are discrete because the data can only take on specific values. These kinds of data are also known as Numerical data. Asking all 10,000 students is an almost impossible task. Compare the fractions 999/10,000 and 999/9,999. Do not automatically assume that the study is good, but do not automatically assume the study is bad either. . 134.209.154.177 What type of data is this? Quantitative data may be either discrete or continuous. The data are continuous because the data can only take on specific values. If there is a repeat press ENTER again. A high school educational researcher interviews 50 high school female teachers and 50 high school male teachers. A random number generator is used to pick two of those years. The data are discrete because the data can take on any value in an interval. It is better for the person conducting the survey to select the sample respondents. Press ENTER two more times for the other 2 random numbers. Determine whether the data described below are qualitative or quantitative and explain why: . on any value in an interval . Types of soups, nuts, vegetables and desserts are qualitative data because they are categorical. Also, in both cases, not all students have a chance to be in either sample. 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. What type of data is this? How to differentiate the obtained results as discrete and continuous data? 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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. On the other hand, if we count large quantities of any discrete entity. O C. Besides herself, Lisas group will consist of Marcierz, Cuningham, and Cuarismo. a. B. Notice that the frequencies do not add up to the total number of students. You should ask the doubt there and then clear it, analyze it and work on it. The key difference between discrete and continuous data is that discrete data contains the integer or whole number. Confounding: When the effects of multiple factors on a response cannot be separated. Collecting data carelessly can have devastating results. The table displays Ethnicity of Students but is missing the "Other/Unknown" category. O C. These 15 quiz scores are the systematic sample. Small letters like \(x\) or \(y\) generally are used to represent data values. It may take any numeric value, within a potential value range of finite or infinite. A.The data are continuous because the data can only take on the data can only take on specificvalues. 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 areas of the lawns are 144 sq. A. Working with data requires good data science skills and a deep understanding of different types of data and how to work with them. It only contains finite values, the subdivision of which is not possible. Press ENTER and record that number. The exact distances (in centimeters) between the chairs in a college classroom. 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. The colors red, black, black, green, and gray are qualitative data. data are discrete because the data can take on any value in an We need to evaluate the statistical studies we read about critically and analyze them before accepting the results of the studies. The data . This website is using a security service to protect itself from online attacks. The Pareto chart has the bars sorted from largest to smallest and is easier to read and interpret. Non-response or refusal of subject to participate: The collected responses may no longer be representative of the population. 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. discrete because the data can only take on specific values . Press ENTER 2 more times (even the repeats). Its really normal for you to feel anxious before your exam especially when the subject is statistics. Since these samples are not representative of the entire population, is it wise to use the results to describe the entire population? The discrete data are countable and have finite values; their subdivision is not possible. The option "B" is correct i.e. B. Press ENTER. feet, 190 sq. The data are the number of machines in a gym. Look at Figures \(\PageIndex{3}\) and \(\PageIndex{4}\) and determine which graph (pie or bar) you think displays the comparisons better. Blood type might be AB+, O-, or B+. A continuous data set because there are infinitely mamy possible values and those values cannot be counted. The use of discrete and continuous quantitative variables would be helpful for detecting intervention effects . - Example, Formula, Solved Examples, and FAQs, Line Graphs - Definition, Solved Examples and Practice Problems, Cauchys Mean Value Theorem: Introduction, History and Solved Examples. You can also visit their website. We may prefer not to think of 10,00,100 and 10,00,102 as crucially different values, but instead as nearby points on an approximate continuum. For example, 16-ounce cans of beverage may contain more or less than 16 ounces of liquid. pair starts due east and then turns 50 toward north. When properly selected, larger samples model the population more closely than smaller samples. B. State whether the data described below are discrete or continuous, and explain why. Continuous data are in the form of fractional numbers. C. Q: Classify the Following as Discrete and Continuous Data. The safest route is to avoid the closest pair of islands. The data are discrete because the data can only take on specific values. O B. Data are individual items of information that come from a population or sample. The two numbers are for two of the columns. Do you think that either of these samples is representative of (or is characteristic of) the entire 10,000 part-time student population? Show Less. A study is done to determine the average tuition that San Jose State undergraduate students pay per semester. B. A completely random method is used to select 75 students. Sampling without replacement instead of sampling with replacement becomes a mathematical issue only when the population is small. It would be great if you already have a bit of knowledge about a course before opting for it. A. State whether the data described below are discrete or continuous, and explain why. The data are continuous because the data can take on any value in an interval. To four decimal places, these numbers are not equivalent. Because students can complete only a whole number of hours (no fractions of hours allowed), this data is quantitative discrete. Ordinal data is qualitative data for which their values have some kind of relative position. 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. categorical, quantitative discrete or quantitative continuous. This is important to know when we think about what the data are telling us. To choose a systematic sample, randomly select a starting point and take every nth piece of data from a listing of the population. You are going to use the random number generator to generate different types of samples from the data. Every value within a range is included in continuous data. Once you are clear with the basic concept, you shall be able to understand additional concepts easily. O C. Your IP: For some students, it might feel difficult as it involves logical thinking and mathematics but its a great option for those who love solving and putting their minds all into logic.
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