Question

If and are two events such that () = 0 ⋅ 5, () = 0 ⋅ 6 and ( ∩ ) = 0 ⋅ 4, then what is ( ∪ ) equal to

Answer 1

Answer:

P ( A + B ) = P( A ) + P( B ) - P ( AB )

P ( A + B ) = 0.5 + 0.6 - 0.4 = 0.7