-Match the following sample correlation coefficients with the explanation of wha
ID: 3060285 • Letter: #
Question
-Match the following sample correlation coefficients with the explanation of what that correlation coefficient means. Type the correct letter in each box.
1. r=.92
2. r=.15
3. r=1
4. r=0
A. a weak negative linear relationship between x and y
B. a perfect negative linear relationship between x and y
C. a strong positive linear relationship between x and y
D. no linear relationship between x andy
- An outbreak of the deadly Ebola virus in 2002 and 2003 killed 91 of the 95 gorillas in 7 home ranges in the Congo. To study the spread of the virus, measure distance by the number of home ranges separating a group of gorillas from the first group infected. Here are data on distance and number of days until deaths began in each later group:
Find the correlation r between x and y.
r =
Distance x 4 2 5 3 4 8 Days y 3 21 35 42 41 47Explanation / Answer
1) A. a weak negative linear relationship between x and y r=-0.15
B. a perfect negative linear relationship between x and y r=-1
C. a strong positive linear relationship between x and y r=0.92
D. no linear relationship between x and y= r=0
2) r= 0.44
(By using excel function CORREL)
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