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Otrada [13]
3 years ago
11

As a company manager for the Quick Money Business there is a 0.40 probability that you will be promoted this year. There is a 0.

72 probability that you will get a promotion or a raise. The probability of getting a promotion and a raise is 0.25. If you get a promotion, what is the probability that you will get a raise?
Mathematics
1 answer:
Maslowich3 years ago
8 0

Answer:

Probability of getting raise when you get promoted = 0.625

Step-by-step explanation:

We have to find the probability of getting a raise. So,

Promotion = P, Raise = R

First we find if you get the promotion, what is the probability that you will also get a raise

P(R | P) = \dfrac{P(P \& R)}{P(P)} = \dfrac {0.25}{0.4} = 0.625

Probability of getting raise when you get promoted = 0.625.

Now we find the  probability of getting a raise,

P(P\ or\ R) = P(P) + P(R) - P(P \& R)\\\0.72 = 0.4 + P(R) - 0.25\\P(R) = 0.72 - 0.4 +0.25\\P(R) = 0.57

So, the probability of getting raise = 0.57.

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