/*! 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.40 Does the line seem to fit the da... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 12: Q.40 (page 718)

Does the line seem to fit the data? Why or why not?

Short Answer

Expert verified

A relationship is linear because points fall close to the straight line. Therefore, the line will be fit into the data.

Step by step solution

01

Given information

Given in the question that the table,

Year
# flu cases diagnosed
# flu deaths
Pre-1981
91
29
1981319121
19821,170453
19833,0761,482
19846,2403,466
198511,7766,878
19861903211,987
198728,56416,162
198835,44720,868
198942,67427,591
199048,63431,335
199159,66036,560
199278,53041,055
199378,83444,730
199471,87449095
199568,50549,456
199659,34738,510
199747,14920736
199838,39319,005
199925,17418,454
200025,52217,347
200125,64317,402
200226,46416,371
total802,118489,093
02

Explanation

The scatter plot is shown below:

The above graph shows that there is a positive association between the variables as slopes go upward from left to right. Also, a relationship is linear because points fall close to the straight line. Therefore, the line will be fit into the 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 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

65. Explain what it means when a correlation has anr2 of 0.72.

53. What effect did the potential outlier have on the line of best fit?

The average number of people in a family that attended college for various years is given in Table 12.29.

a. Using 鈥測ear鈥� as the independent variable and 鈥淣umber of Family Members Attending College鈥� as the dependent variable, draw a scatter plot of the data.

b. Calculate the least-squares line. Put the equation in the form of: \(\hat{y}=a+bx\)

c. Find the correlation coefficient. Is it significant?

A researcher is investigating whether population impacts homicide rate. He uses demographic data from Detroit, MI to compare homicide rates and the number of the population that are white males.

a. Use your calculator to construct a scatter plot of the data. What should the independent variable be? Why?

b. Use your calculator鈥檚 regression function to find the equation of the least-squares regression line. Add this to your

scatter plot.

c. Discuss what the following mean in context.

i. The slope of the regression equation

ii. The y-intercept of the regression equation

iii. The correlation \(r\)

iv. The coefficient of determination \(r2\).

For a given line of best fit, you compute that r = 0 using n = 100 data points. Can the line be used for prediction? Why or why not?
See all solutions

Recommended explanations on Math Textbooks

Theoretical and Mathematical Physics

Read Explanation

Applied Mathematics

Read Explanation

Logic and Functions

Read Explanation

Statistics

Read Explanation

Calculus

Read Explanation

Pure Maths

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.