Question

If the probability that a communication system has high selectively is 0.54 , the probability that it will have high fidelity is 0.81 and the probability that it will have both is 0.18. Find the probability that a system with high fidelity will have high selectivity.

Answer 1

Answer:

Let F be the event that a communication system has high fidelity

And S be the event that a communication system has high selectivity

Given:

P(F) = 0.81

P (F ∩ S) = 0.18

To find:

P(S/F)

From the concept of conditional probability

Substituting the values