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pattern of all 10 10 points and...

Refer to the accompanying scatterplot. a. Examine the pattern of all

10

10 points and subjectively determine whether there appears to be a strong correlation between x and y. b. Find the value of the correlation coefficient r and determine whether there is a linear correlation. c. Remove the point with coordinates (

1

1,

9

9) and find the correlation coefficient r and determine whether there is a linear correlation. d. What do you conclude about the possible effect from a single pair of values?Click here to view a table of critical values for the correlation coefficient.

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100

10

x

yA scatterplot has a horizontal x-scale from 0 to 10 in increments of 1 and vertical y-scale from 0 to 10 in increments of 1. Ten points are plotted with nine points (8, 3), (9, 3), (10, 3), (8, 2), (9, 2), (10, 2), (8, 1), (9, 1), and (10, 1) forming a square and the tenth point (1, 9) above and to the left of it.

a. Do the data points appear to have a strong linear correlation?NoYes

10

10 points and subjectively determine whether there appears to be a strong correlation between x and y. b. Find the value of the correlation coefficient r and determine whether there is a linear correlation. c. Remove the point with coordinates (

1

1,

9

9) and find the correlation coefficient r and determine whether there is a linear correlation. d. What do you conclude about the possible effect from a single pair of values?Click here to view a table of critical values for the correlation coefficient.

LOADING...0

100

10

x

yA scatterplot has a horizontal x-scale from 0 to 10 in increments of 1 and vertical y-scale from 0 to 10 in increments of 1. Ten points are plotted with nine points (8, 3), (9, 3), (10, 3), (8, 2), (9, 2), (10, 2), (8, 1), (9, 1), and (10, 1) forming a square and the tenth point (1, 9) above and to the left of it.

a. Do the data points appear to have a strong linear correlation?NoYes

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