1The distribution of heights of Filipina models is approximately normally distributed with a mean of 65.5 inches and standard deviation of 2.5 inches. Calculate the z-score for a woman 6ft tall.

2. The time Katy Perry worked last week was recorded below. Which measure of central tendency would change if Mike worked 2 days less on Wednesday. Monday: 8hrs Tuesday: 6hrs Wednesday: 7hrs Thursday: 4hrs Friday: 6hrs

3.The variance and mean for a given set is 25 and 64 respectively. Calculate thestandard deviation.

4.. The distribution of heights of Filipina models is approximately normally distributed with a mean of 65.5 inches and standard deviation of 2.5 inches. Calculate the z-score for a woman 6ft tall. O 1.04

5.the scores on a test have a mean of 26 and a standard deviation of 4, what is the z-score for a score of 18?