2. The average test score in a certain statistics class was 74 with a standard deviation of 8. There are 2000 students in this class. (a) What percentage of students scores less than 58? (b) What is the probability that a student scored between 66 and 82 on the exam? (c) How many students scored at most 90? (d) What percentage of students scored at least 66? (e) How many students scored more than 98 on the test? '

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Add tables, inferences and conclusion if necessary
2. The average test score in a certain statistics class
was 74 with a standard deviation of 8. There are
2000 students in this class. (a) What percentage of
students scores less than 58? (b) What is the
probability that a student scored between 66 and 82
on the exam? (c) How many students scored at most
90? (d) What percentage of students scored at least
66? (e) How many students scored more than 98 on
the test?
Transcribed Image Text:2. The average test score in a certain statistics class was 74 with a standard deviation of 8. There are 2000 students in this class. (a) What percentage of students scores less than 58? (b) What is the probability that a student scored between 66 and 82 on the exam? (c) How many students scored at most 90? (d) What percentage of students scored at least 66? (e) How many students scored more than 98 on the test?
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