I think it is 500 or 300 I really just guessed sorry
IT IS 15 BECAUSE YOU HAVE TO ADD IT UP
Try 1(18) / 2
Just multiply 1 by 18 and divide 18 by 2.
Then we have 9!
Given:
A baseball player get a hit in 31% of his at-bats.
To find:
The probability that he will get a hit 5 at-bats in a row.
Solution:
Since, a baseball player get a hit in 31% of his at-bats, therefore
Probability that he get a hit = 
= 
Now, the probability that he will get a hit 5 at-bats in a row is



Therefore, the required probability is
and it can be written as 0.0028629151
.