1. Which of the following values cannot represent a correlation
coefficient?
a. r = 1.08
b. r = 0.95
C. r = 0
d. r = - 1.0
2.What could be the approximate value of the correlation coefficient for a weak negative correlation?
a. -0.85
b. -0.16
C. 0.21
d. 0.90
3. Which value of a correlation coefficient represents the strongest relationship between the two variables ?
a. -0.94
b. 0
C. 0.5
d. 0.91
4. Which value of r represents data with a strong negative linear correlation between two variables?
a. -1.07
b. -0.89
c. -0.14
d. 0.92
5. A study compared the number of years of education a person received and that person's average yearly salary. It was determined that the relationship between these two quantities was linear and the correlation cofficient was 0.91. Which conclusion can be made based on the findings of this study?
a. There was a weak relationship
b. there was a strong relationship
c. there was no relationship
d. there was an unpredictable relationship​