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In a certain town, 60% of the families o...

In a certain town, 60% of the families own a car, 30% own a house and 20% own both car and house. If a family is randomly chosen, then what is the probability that this family owns a car or a house but not both?

A

`0.5`

B

`0.7`

C

`0.1`

D

`0.9`

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The correct Answer is:
A
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