Assume the resting heart rates for a sample of individuals are normally distributed with a mean of 65 and a standard deviation of 15. Use the 68-95-99.7 rule to find the following quantities.

a. The relative frequency of rates less than 95 using the 68-95-99.7 rule is n

(Round to three decimal places as needed.)

b. The relative frequency of rates greater than 80 using the 68-95-99.7 rule is n.

(Round to three decimal places as needed.)

c. The relative frequency of rates between 35 and 65 using the 68-95-99.7 rule is n

(Round to three decimal places as needed.)