If there are 40 X scores and 40 Y scores, how many degrees of ...

[SO00]

If there are 40 X scores and 40 Y scores, how many degrees of freedom are there for the Pearson product moment correlation coefficient?
 
  a. 40 c. 38
  b. 39 d. 78

Question 2

When rounding, if the decimal remainder is equal to  and the last digit of the answer is even, add 1 to the last digit of the answer.
 
  Indicate whether the statement is true or false

[macagnavarro]

Answer to Question 1

C
df = N - 2, where N is the number of pairs of scores.

Answer to Question 2

F