A large number of students took a departmental math test, of whom 8 percent scored 90 or more from the scale of 100. The scores have a bell-shaped distribution with a standard deviation of 8.5.
17
If the minimum score to pass the test is 62, what fraction of the students failed the test?
a
0.0526
b
0.0409
c
0.0301
d
0.0262
18
The middle interval which includes 95% of the test scores is _______ to _______. (Round the scores to the nearest integer.)
a
60
96
b
61
95
c
63
93
d
64
94
https://eazyweezyhomeworks.com/wp-content/uploads/2020/09/logo-300x75.png00adminhttps://eazyweezyhomeworks.com/wp-content/uploads/2020/09/logo-300x75.pngadmin2021-12-19 04:08:502021-12-19 04:08:50A large number of students took a departmental math test, of whom 8
