Question

p(A)= 3/8, p(B)= 5/8,and p(AuB)=3/4 then A and B are
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Answer 1

1/4

Step-by-step explanation:

Mostly, OR is used for union of sets.

AND is used for intersection of sets.

P(AnB)=P(A)+P(B)-P(AuB)

P(AnB)=3/8+5/8 - 3/4

P(AnB)= 1 - 3/4

P(AnB) = 1/4

Answer 2

Given:

P(A)=3/8

P(B)=5/8

P(AUB)=3/4

To find:

P(A and B)

Solution:

We can find the value by following the steps given below-

We know that the P(A and B) is the difference of P(AUB), the sum of P(A), and P(B).

P(AUB)=P(A)+P(B)-P(A and B)

So, P(A and B)= P(A)+P(B)-P(AUB)

=3/8+5/8-3/4

=8/8-3/4

=1-3/4

=1/4

P(A and B)=1/4

Therefore, the value of P(A and B) is 1/4.