The accompanying data represent the pulse rates​ (beats per​minute) of nine students. Treat the nine students as a population.Compute the​ z-scores for all the students. Compute the mean andstandard deviation of these​ z-scores. Compute the​ z-scores forall the students. Complete the table.
Student 1 .
Student 2
Student 3
Student 4
Student 5
Student6
Student 7
Student 8
Student 9
​(Round to the nearest hundredth as​ needed.) Compute the meanof these​ z-scores.
The mean of the​ z-scores is _____
. ​(Round to the nearest tenth as​ needed.)
Compute the standard deviation of these​ z-scores. The standarddeviation of the​ z-scores is ____
. ​(Round to the nearest tenth as​ needed.) Enter your answer ineach of the answer boxes.
Pulse Rates Student Pulse
Student 1   77
Student 2   61
Student 3   60
Student 4   80
Student 5   73
Student 6   80
Student 7 80
Student 8   68
Student 9   73
