An environmentalist wants to determine the relationships between the numbers (in thousands) of forest fires over the year and the number (in hundred thousands) of acres burned. The data for 8 recent years are shown. Required: Find the correlation coefficient. Only the final answer should be rounded-off to TWO decimal places. Number 72 69 58 47 84 62 50 53 of fires (x) Number of acres 62 42 19 26 51 15 33 22 burned (y)

An environmentalist wants to determine the relationships between the numbers (in thousands) of forest fires over the year and the number (in hundred thousands) of acres burned. The data for 8 recent years are shown. Required: Find the correlation coefficient. Only the final answer should be rounded-off to TWO decimal places. Number 72 69 58 47 84 62 50 53 of fires (x) Number of acres 62 42 19 26 51 15 33 22 burned (y)

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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Question

Required: Find the correlation coefficient.

Only the final answer should be rounded-off to TWO decimal places.

An environmentalist wants to determine the relationships between the numbers (in
thousands) of forest fires over the year and the number (in hundred thousands) of acres
burned. The data for 8 recent years are shown.
Required: Find the correlation coefficient.
Only the final answer should be rounded-off to TWO decimal places.
Number
72
69
58
47
84
62
50
53
of fires (x)
Number
of acres
62
42
19
26
51
15
33
22
burned (y)

Definition Definition Statistical measure used to assess the strength and direction of relationships between two variables. Correlation coefficients range between -1 and 1. A coefficient value of 0 indicates that there is no relationship between the variables, whereas a -1 or 1 indicates that there is a perfect negative or positive correlation.

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