SOLUTION: each of the numbers 1 through 30 is written on a table tennis ball and placed in a wired cage. each of the numbers 20 through 45 is written on a table tennis ball and placed in a d

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Question 975526: each of the numbers 1 through 30 is written on a table tennis ball and placed in a wired cage. each of the numbers 20 through 45 is written on a table tennis ball and placed in a different wire cage. one ball is chosen at random from each spinning cage. P(exactly one is a 40)
A. Mutually inclusive; 2/27
B. Mutually exclusive; 2/13
C. Mutually exclusive; 4/27
D. Mutually inclusive; 2/13

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Exclusive, picking one ball doesn't have an effect on the other.
From the first cage, P%281%2C40%29=0
From the second cage, P%282%2C40%29=1%2F25
So,
P%2840%29=P%281%2C40%29%2BP%282%2C40%29
P%2840%29=1%2F25