The heights (in inches) of 8 high school students and their scores on an IQ test are shown in the attached data table with a sample correlation coefficient r of 0.155. Remove the data entry for the student who is 59 inches tall and scored 95 on the IQ test from the data. Describe how this affects the correlation coefficient r. Click the icon to view the data set. The new correlation coefficient r (Round to three decimal places as needed.) going from 0.155 to
The heights (in inches) of 8 high school students and their scores on an IQ test are shown in the attached data table with a sample correlation coefficient r of 0.155. Remove the data entry for the student who is 59 inches tall and scored 95 on the IQ test from the data. Describe how this affects the correlation coefficient r. Click the icon to view the data set. The new correlation coefficient r (Round to three decimal places as needed.) going from 0.155 to
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.1: Stem-and-leaf Plots And Histograms
Problem 10E
Related questions
Question
a. Calculate the
r = ____
b. Calculate the correlation coefficient r, letting row 2 represent the x-values and row 1 the y-values.
r = _____
c. What effect does switching the variables have on the correlation coefficient?
Transcribed Image Text:The heights (in inches) of 8 high school students and their scores on an IQ test are shown in the attached data table
with a sample correlation coefficient r of 0.155. Remove the data entry for the student who is 59 inches tall and scored
95 on the IQ test from the data. Describe how this affects the correlation coefficient r.
Click the icon to view the data set.
The new correlation coefficient r
(Round to three decimal places as needed.)
going from 0.155 to
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