Correlation quiz

1 Correlation is a __________ type of statistical analysis.

2 Correlation is:

3 What would you expect the correlation between daily calorie consumption and body weight to be?

4 Estimate the correlation between driving performance and blood alcohol levels:

5 Estimate the correlation between use of contraception and likelihood of pregnancy in heterosexual intercourse:

6 Estimate the correlation between consumer cost and consumer satisfaction:

7 Estimate the correlation between solar flares and suicide:

8 The degrees of freedom for Pearson’s product-moment $r={\frac {\sum z_{x}z_{y}}{n-?}}.$is equal to:

9 Which of the following checks are not relevant to deciding whether the Pearson product-moment correlation is an appropriate indication of the degree of linear association between two variables?

10 The square of the correlation coefficient or r^{2} is called the