i dont know how to start or solve involves normal distribution and 68-95-99.7 rule

FratBro23
Category:
Statistics
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Question description

assume the resting heart rates for a sample of individuals are normally distributed with a mean of 80 and a standard deviation of 15. following quantities:

the relative frequency of rates less than 110 using the 68-95-99.7 rule is?

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(Top Tutor) Daniel C.
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