a. Determine the correlation coefficient between the percentage of teenagers who have used Drug 1 and the percentage who have used other drugs. (Round to two decimal places as needed.) b. Find the equation of the regression line for the percentage of teenagers who have used Drug 1 and the percentage who have used other drugs. y=x+O (Round to two decimal places as needed.) c. What percentage of teenagers can be anticipated to use illegal drugs other than Drug 1 in a country where 8% of teenagers have used Drug 1? (Round to the nearest whole number as needed.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 2CYU
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Question
The accompanying data represent the percentages of teenagers in various countries that have used certain drugs. Complete parts (a) through (c) below.
J
K
G
23
15
A
B
C
D
F
H
Country
Drug 1, x
Other Drugs, y
23
18
39
4
36
19
8
54 34
4
21
17
8
2
2
30
25
a. Determine the correlation coefficient between the percentage of teenagers who have used Drug 1 and the percentage who have used other drugs.
(Round to two decimal places as needed.)
b. Find the equation of the regression line for the percentage of teenagers who have used Drug 1 and the percentage who have used other drugs.
y=x+
(Round to two decimal places as needed.)
c. What percentage of teenagers can be anticipated to use illegal drugs other than Drug 1 in a country where 8% of teenagers have used Drug 1?
%
(Round to the nearest whole number as needed.)
O Time Remaining:
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Transcribed Image Text:The accompanying data represent the percentages of teenagers in various countries that have used certain drugs. Complete parts (a) through (c) below. J K G 23 15 A B C D F H Country Drug 1, x Other Drugs, y 23 18 39 4 36 19 8 54 34 4 21 17 8 2 2 30 25 a. Determine the correlation coefficient between the percentage of teenagers who have used Drug 1 and the percentage who have used other drugs. (Round to two decimal places as needed.) b. Find the equation of the regression line for the percentage of teenagers who have used Drug 1 and the percentage who have used other drugs. y=x+ (Round to two decimal places as needed.) c. What percentage of teenagers can be anticipated to use illegal drugs other than Drug 1 in a country where 8% of teenagers have used Drug 1? % (Round to the nearest whole number as needed.) O Time Remaining: MacBook Air * F2 esc F1 20 F3, F4 F5 F6 F7 FB >> F9 @ #3 3 2$ & * 2 4 5 6. 7 8 9. Q W R 285
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