/*! 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} Q 43. The following partially complete... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 1: Q 43. (page 29)

The following partially completed two-way table shows the marginal distributions of gender and handedness for a sample of 100 high school students.

If there is no association between gender and handedness for the members of the sample, which of the following is the correct value of x?

(a) 20

(b) 30

(c) 36

(d) 45

(e) Impossible to determine without more information.

Short Answer

Expert verified

Option (c) 36 is the correct option.

Step by step solution

01

Step 1. Given information.

The given table is:

02

Step 2. Explanation for the correct option.

If there is no link between gender and handedness, the value in a table cell should be equal to the product of the row and column totals, divided by the table total, because the proportion of right-handed people must be the same for males and the overall population.

x=RowtotalxColumntotalTabletotal=90脳40100=3600100=36

As a result, answer choice (c) should have a value of 36.

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 91影视!

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

Paying for championships Refer to Exercise 73. Here is a better graph of the 2008 salary distributions for the Yankees and the Phillies. Write a few sentences comparing these two distributions.

Strong paper towels In commercials for Bounty paper towels, the manufacturer claims that they are the 鈥渜uicker picker-upper,鈥� but are they also the stronger picker-upper? Two of Mr. Tabor鈥檚 statistics students, Wesley and Maverick, decided to find out. They selected a random sample of 30 Bounty paper towels and a random sample of 30 generic paper towels and measured their strength when wet. To do this, they uniformly soaked each paper towel with 4 ounces of water, held two opposite edges of the paper towel, and counted how many quarters each paper towel could hold until ripping, alternating brands. The data are displayed in the relative frequency histograms. Compare the distributions

Part (a). Would it be appropriate to use frequency histograms instead of relative frequency histograms in this setting? Explain why or why not.

Part (b). Compare the distributions of number of quarters until breaking for the two paper towel brands

Making money The parallel dotplots show the total family income of randomly chosen individuals from Indiana (38 individuals) and New Jersey (44 individuals). Compare the distributions of total family incomes in these two samples..

Mean salary? Last year a small accounting firm paid each of its five clerks \(32,000, two junior accountants \)60,000 each, and the firm鈥檚 owner $280,000.

(a) What is the mean salary paid at this firm? How many of the employees earn less than the mean? What is the median salary?

(b) Write a sentence to describe how an unethical recruiter could use statistics to mislead prospective employees.

Body imageA random sample of 1200 U.S. college students was asked, 鈥淲hat is your perception of your own body? Do you feel that you are overweight, underweight, or about right?鈥� The two-way table summarizes the data on perceived body image by gender.

(a) What percent of respondents feel that their body weight is about right?

(b) What proportion of the sample is female?

(c) What percent of respondents are males and feel that they are overweight or underweight?
See all solutions

Recommended explanations on Math Textbooks

Logic and Functions

Read Explanation

Pure Maths

Read Explanation

Discrete Mathematics

Read Explanation

Mechanics Maths

Read Explanation

Geometry

Read Explanation

Theoretical and Mathematical Physics

Read Explanation
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.