Monica's reading comprehension score = 121 Mean fourth grade reading comprehension score
Monica’s reading comprehension score = 121 Mean fourth grade reading comprehension score = 147
Standard deviation of the fourth grade’s reading comprehension = 14.8
Monica’s z-score in math = 1.2
Mean fourth grade math score = 179
Standard deviation of the fourth grade’s math scores = 13.1
1.Calculate the obtained z-score by hand.