Heart Rates For a certaln group of individuals, the average heart rate is 73 beats per minute. Assume the variable is normaly distributed and the standard deviation is 2 beats per minute. If a subject is selected at random, find the probability that the person has the following heart rate. Round the final answers to at least four decimal places and intermediate z-value calculations to two decimal places. Part: 0/3 Part 1 of 3 (a) Between 70 and 74 beats per minute P(70