Five pulse rates are randomly selected from a set of measurements. The five pulse rates have a mean of 66.4 beats per minute. Four of the pulse rates are 69, 65, 58, and 54. a. Find the missing value. b. Suppose that you need to create a list of n values that have a specific known mean. Some of the n values can be freely selected. How many of the n values can be freely assiqned before the remaining values are determined? (The result is referred to as the number of degrees of freedom.) a. The missing value is (Type an integer or a decimal. Do not round.) beats per minute.

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