If the correlation coefficient r = 1.00, then all the ...

[sabina]

If the correlation coefficient r = 1.00, then all the observations must fall exactly on:
 a. a straight line with a slope that equals 1.00.
  b. a straight line with a negative slope.
  c. a straight line with a positive slope.
  d. a horizontal straight line with a zero slope.

Question 2

Generally speaking, if two variables are unrelated (as one increases, the other shows no pattern), the covariance will be:
 a. a large positive number.
  b. a large negative number.
  c. a positive or negative number close to zero.
  d. None of these choices.

[aprice35067]

Answer to Question 1

C

Answer to Question 2

C