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user100 [1]
3 years ago
9

59% of the working population attended college. If a person in the working population attended college, there is a 0.94 probabil

ity the person is currently employed. If a person did not attend college, there is a 0.89 probability the person is currently employed. What is the probability a person did not attend college if the person is not currently employed
Mathematics
1 answer:
Naily [24]3 years ago
3 0

Answer:

The probability that a person did not attend college if the person is not currently employed is 0.5602.

Step-by-step explanation:

Denote the events as follows:

<em>X</em> = a person attended college

<em>Y</em> = a person is employed.

Given:

P(X)=0.59\\P(Y|X)=0.94\\P(Y|X^{c})=0.89

Compute the value of P(Y^{c}|X^{c}) as follows:

P(Y^{c}|X^{c})=1-P(Y|X^{c}) = 1 - 0.89=0.11

Compute the probability of a person being employed as follows:

P(Y)=P(Y|X)P(X)+P(Y|X^{c})P(X^{c})\\=(0.94\times0.59)+(0.89\times(1-0.59))\\=0.5546+0.3649\\=0.9195

Then the value a person being not employed is:

P(Y^{c})=1-P(Y)=1-0.9195=0.0805

Compute the value of P(X^{c}|Y^{c}) as follows:

P(X^{c}|Y^{c})=\frac{P(Y^{c}|X^{c})P(X^{c})}{P(Y^{c})}=\frac{0.11\times(1-0.59)}{0.0805}=0.5602

Thus, the probability that a person did not attend college if the person is not currently employed is 0.5602.

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