juanman29
contestada

A and B are mutually exclusive events. P(A) = 0.20 and P(B) = 0.70. What is P(A or B)?
A. 0.90
B. 0.50
C. 0.14
D. 0.28​

Respuesta :

Kafie

Answer: 0.90

Step-by-step explanation:

If A and B are mutually exclusive events, P(A or B) is the sum of probability of A and probability of B.

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

Given that, P(A) = 0.20 and P(B) = 0.70

Then,

P(A or B) = 0.20 + 0.70

P(A or B) = 0.90

Answer:

If P(A)=0.50 and P(B)=0.30 P(A or B)=0.80

Step-by-step explanation: