/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 3 Which of the following describe ... [FREE SOLUTION] | 91Ó°ÊÓ

91Ó°ÊÓ

Which of the following describe discrete data? a. The numbers of people surveyed in each of the next several years for the National Health and Nutrition Examination Surveys b. The exact foot lengths (measured in \(\mathrm{cm}\) ) of a random sample of statistics students c. The exact times that randomly selected drivers spend texting while driving during the past 7 days

Short Answer

Expert verified
Option a describes discrete data.

Step by step solution

01

Understand Discrete Data

Discrete data consists of distinct and separate values. Often, these are counts of items or occurrences and can only take on specific values.
02

Analyze Option a

Option a describes the numbers of people surveyed in each of the next several years. These numbers are countable and distinct, which makes them discrete data.
03

Analyze Option b

Option b describes the exact foot lengths measured in centimeters. Since foot lengths can take any value within a range and are not countable in distinct steps, this represents continuous data, not discrete data.
04

Analyze Option c

Option c describes the exact times that drivers spend texting while driving. Time measurements can take any value within a range and are not countable in distinct steps, thus this is also continuous data.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91Ó°ÊÓ!

Key Concepts

These are the key concepts you need to understand to accurately answer the question.

discrete vs. continuous data
Discrete data is composed of distinct, separate values. Think of it as counting: you can count 1, 2, 3, and so on, but you can't have 1.5 if you're counting people. Discrete data often represents counts or specific figures. For example, the number of students in a class or the number of cars in a parking lot. Each countable value is separate and distinct.

On the other hand, continuous data can take any value within a range. It is measured rather than counted. An example is the exact height of students in a class. Here, a student could be 150.4 cm tall or 150.45 cm tall. The values are not distinct; instead, they can be any number within a range. This data represents measurements such as time, weight, and length.

  • Option a in the exercise: numbers of people surveyed is discrete data - countable and distinct.

  • Option b: foot lengths measured in centimeters is continuous data - any value within a range.

  • Option c: time spent texting while driving is continuous data - not countable in distinct steps.
data types in statistics
Understanding different data types is crucial in statistics. Knowing whether data is discrete or continuous influences the analysis process and the conclusions you can draw.

  • Discrete Data: Often countable. Can't take fractional values between counts. Examples are the number of students in a room or the number of cars in a parking lot. Found in everyday life as counts or tally marks.

  • Continuous Data: Measurable and can take any value within a specified range. Examples are the heights of students, weights of fruits, or the time taken to run a race. More flexible as they can be any number.

Understanding the difference helps properly analyze and apply statistical methods accordingly.
statistics education
Statistics education allows students to learn how to collect, analyze, interpret, and present data. It involves understanding different types of data, like discrete and continuous data, and learning how to choose the right tools and methods for analysis. By mastering these concepts, students can make informed decisions based on data.

In a classroom setting, real-world examples help solidify these concepts, like identifying discrete and continuous data in surveys or experiments. Engaging activities and step-by-step problem-solutions align theory with practical understanding. Mastering concepts such as distributions, mean, median, and the difference between correlation and causation helps in making predictions and informed decisions.

  • Practical Application: Use real-world examples to identify data types.

  • Engaging Activities: Conduct surveys or experiments to see the difference between discrete and continuous data.

  • Step-by-Step Learning: Offer detailed solutions to improve understanding.

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Answer the given questions, which are related to percentages. A New York Times editorial criticized a chart caption that described a dental rinse as one that "reduces plaque on teeth by over \(300 \% . "\) What is wrong with this statement?

Determine whether the study is an experiment or an observational study, and then identify a major problem with the study. The Physicians' Health Study involved 22,071 male physicians. Based on random selections, 11,037 of them were treated with aspirin and the other 11,034 were given placebos. The study was stopped early because it became clear that aspirin reduced the risk of myocardial infarctions by a substantial amount.

Determine whether the results appear to have statistical significance, and also determine whether the results appear to have practical significance. The Medical College Admissions Test (MCAT) is commonly used as part of the decision-making process for determining which students to accept into medical schools. To test the effectiveness of the Siena MCAT preparation course, 16 students take the MCAT test, then they complete the preparatory course, and then they retake the MCAT test, with the result that the average (mean) score for this group rises from 25 to \(30 .\) There is a \(0.3 \%\) chance of getting those results by chance. Does the course appear to be effective?

Answer the given questions, which are related to percentages. When the author was negotiating a contract for the faculty and administration at a college, a dean presented the argument that if faculty receive a \(4 \%\) raise and administrators receive a \(4 \%\) raise, that's an \(8 \%\) raise and it would never be approved. What's wrong with that argument?

Determine whether the data are from a discrete or continuous data set. In a study of weight gains by college students in their freshman year, researchers record the amounts of weight gained by randomly selected students (as in Data Set 6 "Freshman 15" in Appendix B).

See all solutions

Recommended explanations on Math Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.