The top-grossing movies last year were Movie A with $700 million, Movie B with $680 million, Movie C with $610
million, and Movie D with $420 million. Suppose we randomly selected 2 of the movies. Fill in all of the means that
are not already provided in the table.
Sample
n=2
Gross
(in Millions of $)
X
A, B
mean of A, C =
640
mean of B, C = 630
mean of C, D = 520
A, C
690
A, D
700, 680 700, 610 700, 420 680, 610 680, 420 610, 420
?
B, C
560
B, D C D
?
550
?
|
F
U
Done