For an exponentially distributed random variable x with a mean of ...

[krzymel]

For an exponentially distributed random variable x with a mean of 8, the probability of x  8 is .5.
 a. True
  b. False
  Indicate whether the statement is true or false

Question 2

If the coefficient of correlation is -0.4, then the slope of the regression line
 a. must also be -0.4
  b. can be either negative or positive
  c. must be negative
  d. must be 0.16

[tjayeee]

Answer to Question 1

FALSE

Answer to Question 2

C