A recent survey found the following distribution for the number of hours a person sleeps per night Less than 6 hours 12 6 hours 26 7 hours 30 8 hours 28 More than 8 hours 4 100 Find the probability that the person sleeps at least 7 hours per night Enter your answer as a reduced fraction a b

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A recent survey found the following distribution for the number of hours a person sleeps per night. Less than 6 hours 12 6 hours 26

A recent survey found the following distribution for the number of hours a person sleeps per night.

Less than 6 hours	12
6 hours	26
7 hours	30
8 hours	28
More than 8 hours	4
	100

Find the probability that the person sleeps at least 7 hours per night. Enter your answer as a reduced fraction a/b.

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