Answer:
6) Total number of students who took the test = 240
7) (2) 90% of the students who took the test ha scored equal or less Sal's score.
Step-by-step explanation:
6)
Formula to calculate 5th percentile
percentile = (# students who scored ≤ 60 / total number of students) * 100
5th = 12/n * 100
5/100 = 12/n
0.05 = 12/n
n = 240
Total number of students who took the test = 240
7)
90th percentile means Sal scored better than 90% of people who took the test.
