Assume the resting heart rates for a sample of individuals are normally distributed with a mean of 80 and a standard deviation of 5. Use the 68-95-99.7 rule to find the following quantities.

A)The relative frequency of rates less than 90 using the68-95-99.7 rule is

B)The relative frequency of rates greater than 85 using the68-95-99.7 rule is

C)The relative frequency of rates between 70 and 80using the68-95-99.7 rule is

Round all answers to three decimal points