The accompanying data represent the pulse rates (beats per minute) of nine students. Treat the 9 students as a population. Compute the z-scores for all the students. Compute the mean and standard deviation of these z-scores. Student Pulse z-score1 762 613 604 805 726 807 808 689 73Complete the table z-score (round to the nearest hundredth as needed)The mean of z-score is The standard deviation of the z-scores is?