Calculate P (A or B) in the following scenarios: b. P(A)=0.3, P(B)=0.7; A and B are independent P( A or B)=
Since A and B are independent events, we can use the formula:
P(A or B) = P(A) + P(B) - P(A and B)
However, since A and B are independent, P(A and B) = P(A) * P(B) = 0.3 * 0.7 = 0.21.
Substituting the values:
P(A or B) = 0.3 + 0.7 - 0.21 = 0.79