Question

n(ξ)= 30, n(A’)= 14, n(B)= 20 and n(A∩B)= 11, then find n(A) and n(A∪B).​

Answer 1

Answer:

n(B')= 10 n(AUB)= 25

Step-by-step explanation:

n(B') = 30-20= 10

n(A) = 30-14=16

n(AUB)= 16+20-11=25