algebra**
posted by Anonymous .
Consider the sample space S = {1, 2, 3, . . ., 10}. Let A = all odd numbers in S. Let B = all multiples of 5 in S. Compute P(B  A). Enter your answer as a fraction using the "/" and do not include spaces in your answer.

A={1,3,5,7,9}
B={5,10}
A∩B={5}
Assuming random sampling,
P(B)=B/S=2/10=1/5
P(A)=A/S=5/10=1/2
P(A∩B)=1/10
Finally,
P(BA)=P(B∩A)/P(A) (by definition)
I'll let you take it from here.