The expected value of the discrete random variable x is , a ...

[asan beg]

The expected value of the discrete random variable x is , a weighted average of all possible values of x.
 a. True
  b. False
  Indicate whether the statement is true or false

Question 2

In a regression analysis, the regression equation is given by y = 12 - 6x. If SSE = 510 and SST = 1000 . then the coefficient of correlation is
 a. -0.7
  b. +0.7
  c. 0.49
  d. -0.49

[ricroger]

Answer to Question 1

TRUE

Answer to Question 2

A