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
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 .
We know that,
On substituting the given values, we get
Therefore, the probability that a resident chosen at random shops at either Comet Mall or at Star Mall is 87%.
The geologic history of the Earth is broken up into hierarchical chunks of time. From largest to smallest, this hierarchy includes eons<span>, eras, periods, epochs, and ages.
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The speeds range from 30 miles per hour to 70 miles per hour