the mean of a set of data is 5.73 and its standard deviation is 3.44. find the z score for a value of 13.87

z-score = 2.366

Step-by-step explanation:

Given: mean of a set of data is u = 5.73

standard deviation s = 3.44

value or score x = 13.87

To find : z-score

Formula used: Z = (score - mean) / standard deviation

Solution: Z = (x-u) / s

Z = (13.87 - 5.73) / 3.44

Z=8.14 / 3.44

Z = 2.366