Question

Standardized​ exam's scores are normally distributed. In a recent​ year, the mean test score was 21.2 and the standard deviation was 5.7 The test scores of four students selected at random are 15,23,7 and 35 . Find the​ z-scores that correspond to each value and determine whether any of the values are unusual.
The​ z-score for 15 is

Answer 1

32’s 21 savages lil raw jhit only