Calculate P (A or B) in the following scenarios: d. P(A)=0.3, P(B) = 0.7; A and B are independent P (A or B)=

Answer 1

Since A and B are independent events, the probability of A or B occurring can be calculated using the formula:

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

In this case, P(A) = 0.3 and P(B) = 0.7. Since A and B are independent, P(A and B) = P(A) * P(B) = 0.3 * 0.7 = 0.21.

Therefore, P(A or B) = 0.3 + 0.7 - 0.21 = 0.79.