Introduction to Probability and Statistics
Introduction to Probability and Statistics
14th Edition
ISBN: 9781133103752
Author: Mendenhall, William
Publisher: Cengage Learning
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Chapter 3, Problem 3.21SE

a.

To determine

Draw a scatterplot for the given points.

a.

Expert Solution
Check Mark

Answer to Problem 3.21SE

The scatterplot is.

  Introduction to Probability and Statistics, Chapter 3, Problem 3.21SE , additional homework tip  1

Explanation of Solution

Given:

The table shows the data are the times (in months)required to write his books, in increments of 100 .

  Introduction to Probability and Statistics, Chapter 3, Problem 3.21SE , additional homework tip  2

Calculation:

The scatterplot for the given points are.

  Introduction to Probability and Statistics, Chapter 3, Problem 3.21SE , additional homework tip  3

The horizontal axis x represents the number of books and the vertical axis y represents the time (in months).

b.

To determine

Is the relationship between the two variables are linear?

b.

Expert Solution
Check Mark

Answer to Problem 3.21SE

The relationship is not linear.

Explanation of Solution

Given:

The table shows the data are the times (in months) required to write his books, in increments of 100 .

  Introduction to Probability and Statistics, Chapter 3, Problem 3.21SE , additional homework tip  4

Calculation:

The scatterplot for the given points are.

  Introduction to Probability and Statistics, Chapter 3, Problem 3.21SE , additional homework tip  5

The horizontal axis x represents the number of books and the vertical axis y represents the time (in months).

In the scatterplot,

The pattern position is upward The direction is positive.

Strength strong, because points do not deviate from general pattern.

Formed graph shows the curved nature.

Hence the relationship is not linear.

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