Use a computer or statistical calculator to calculate the correlation coefficient in parts a through c below. a. The table shows the approximate distance between selected cities and the approximate cost of flights between those cities. Calculate the correlation coefficient between cost and miles. Cost Miles 184 967 404 3086 r= 0.991 (Round to three decimal places as needed.) 275 1998 93 432 434 3002 b. This table shows the same information, except that the distance was converted to kilometers by multiplying the numbers of miles by 1.609 and rounding to the nearest kilometer. What happens to the correlation coefficient when numbers are multiplied by a positive constant? Cost Kilometers 184 1556 404 4965 (Round to three decimal places as needed.) 275 3215 93 695 434 4830 OA. The correlation is The correlation coefficient increases when the numbers are multiplied by a positive constant. OO B. The correlation is OC. The correlation is . The correlation coefficient remains the same when the numbers are multiplied by a positive constant. The correlation coefficient decreases when the numbers are multiplied by a positive constant.
Use a computer or statistical calculator to calculate the correlation coefficient in parts a through c below. a. The table shows the approximate distance between selected cities and the approximate cost of flights between those cities. Calculate the correlation coefficient between cost and miles. Cost Miles 184 967 404 3086 r= 0.991 (Round to three decimal places as needed.) 275 1998 93 432 434 3002 b. This table shows the same information, except that the distance was converted to kilometers by multiplying the numbers of miles by 1.609 and rounding to the nearest kilometer. What happens to the correlation coefficient when numbers are multiplied by a positive constant? Cost Kilometers 184 1556 404 4965 (Round to three decimal places as needed.) 275 3215 93 695 434 4830 OA. The correlation is The correlation coefficient increases when the numbers are multiplied by a positive constant. OO B. The correlation is OC. The correlation is . The correlation coefficient remains the same when the numbers are multiplied by a positive constant. The correlation coefficient decreases when the numbers are multiplied by a positive constant.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Part b?
Transcribed Image Text:Use a computer or statistical calculator to calculate the correlation coefficient in parts a through c below.
a. The table shows the approximate distance between selected cities and the approximate cost of flights between those cities. Calculate the correlation coefficient between
cost and miles.
Cost
Miles
184
967
404
3086
r= 0.991 (Round to three decimal places as needed.)
275
1998
93
432
434
3002
b. This table shows the same information, except that the distance was converted to kilometers by multiplying the numbers of miles by 1.609 and rounding to the nearest
kilometer. What happens to the correlation coefficient when numbers are multiplied by a positive constant?
Cost
Kilometers
184
1556
404
4965
(Round to three decimal places as needed.)
275
3215
93
695
434
4830
OA. The correlation is
The correlation coefficient increases when the numbers are multiplied by a positive constant.
OO
B. The correlation is
OC. The correlation is
. The correlation coefficient remains the same when the numbers are multiplied by a positive constant.
The correlation coefficient decreases when the numbers are multiplied by a positive constant.
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