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Finger [1]
2 years ago
5

A town has two shopping malls. A survey conducted on the shopping preferences of the town's residents showed that 62% of the res

idents visit Comet Mall, 73% of the residents visit Star Mall, and 48% of the residents visit both malls.
The probability that a resident chosen at random shops at either Comet Mall or at Star Mall is
%.?
PLZ help what is the percent??
Geography
1 answer:
jeyben [28]2 years ago
8 0

Given:

62% of the residents visit Comet Mall.

73% of the residents visit Star Mall.

48% of the residents visit both malls.

To find:

The probability that a resident chosen at random shops at either Comet Mall or at Star Mall.

Solution:

Let A be the event that the residents visit Comet Mall and B be the event that residents visit Star Mall. Then, we have

P(A)=62\%

P(B)=73\%

P(A\cap B)=48\%

We need to find the probability that a resident chosen at random shops at either Comet Mall or at Star Mall. It means, we have to find the value of P(A\cup B).

We know that,

P(A\cup B)=P(A)+P(B)-P(A\cap B)

On substituting the given values, we get

P(A\cup B)=62\%+73\%-48\%

P(A\cup B)=87\%

Therefore, the probability that a resident chosen at random shops at either Comet Mall or at Star Mall is 87%.

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