Answer:
0.7
Step-by-step explanation:
This can be easily solved if we know the formula:
P(A or B) = P(A) + P(B) - P(A and B)
So, for this problem, we can modify the formula to be:
P(M or N) = P(M) + P(N) - P(M and N)
Using given information, we can solve:
P(M or N) = P(M) + P(N) - P(M and N)
P(M or N) = 0.6 + 0.2 - 0.1
P(M or N) = 0.7
Last answer choice is right, 0.7