What is the value of the sample correlation r?

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section8.2: The Law Of Cosines
Problem 3E
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Question
What is the value of the sample correlation r?
(A) 0.62
(B) 0.39
(C) 0.78
(D) 0.80
(E) 0.59
Transcribed Image Text:What is the value of the sample correlation r? (A) 0.62 (B) 0.39 (C) 0.78 (D) 0.80 (E) 0.59
The next four questions (29 to 32) refer to the following:
To most Canadians, earthquakes are viewed as rare occurrences, but they are actually
quite common. In just one month in 2001, Natural Resources Canada recorded 215
earthquakes that affected Canada from B.C. to Nunavut to Newfoundland. We would
like to determine whether there is a linear relationship between the location of an earth-
quake X (measured in degrees latitude north of the equator) and the magnitude of the
earthquake Y (measured on the Richter scale). The explanatory and response variables
are measured for a sample of 13 earthquakes. The equation of the least squares regression
line is ŷ = -3.05+ 0.10x. The ANOVA table is showm below:
ге
Source of Variation df Sum of Squares Mean Square
F
Regression
Error
Total
1.40
25.10
Transcribed Image Text:The next four questions (29 to 32) refer to the following: To most Canadians, earthquakes are viewed as rare occurrences, but they are actually quite common. In just one month in 2001, Natural Resources Canada recorded 215 earthquakes that affected Canada from B.C. to Nunavut to Newfoundland. We would like to determine whether there is a linear relationship between the location of an earth- quake X (measured in degrees latitude north of the equator) and the magnitude of the earthquake Y (measured on the Richter scale). The explanatory and response variables are measured for a sample of 13 earthquakes. The equation of the least squares regression line is ŷ = -3.05+ 0.10x. The ANOVA table is showm below: ге Source of Variation df Sum of Squares Mean Square F Regression Error Total 1.40 25.10
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