Each of the numbers from 1 through 30 is written on a table tennis ball and placed in a wire 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.

Which of the following best describes:
P(exactly one is a 30)

Question

Each of the numbers from 1 through 30 is written on a table tennis ball and placed in a wire 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.
 
Which of the following best describes:
P(exactly one is a 30)

anonymous · Answer

i tried this one before got it wrong

anonymous · Answer

This looks to be a disjunctive probability. There are 30 balls in the first cage, and 25 in the second. What are the individual probabilities?

anonymous · Answer

wait nooo sorry wrong problem

anonymous · Answer

a 1/26
b 9/30
c145/156
d1/780