A large group of students took a statistics test. The mean score, from the scale of 100, was 74.5 with a standard deviation of 7.5 The test scores have a bell-shaped distribution. 29 What should the minimum score be set at so that a grade of A is given to the top 5% of test scores? a 87 b 88 c 89 d 90
A large group of students took a statistics test. The mean score, from the scale of 100, was 74.5 with a standard deviation of 7.5 The test scores have a bell-shaped distribution. 29 What should the minimum score be set at so that a grade of A is given to the top 5% of test scores? a 87 b 88 c 89 d 90
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
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Question
| A large group of students took a statistics test. | ||||||
| The mean score, from the scale of 100, was | 74.5 | with a standard deviation of | 7.5 | |||
| The test scores have a bell-shaped distribution. |
| 29 | What should the minimum score be set at so that a grade of A is given to the top | 5% | of test scores? | |||||||
| a | 87 | |||||||||
| b | 88 | |||||||||
| c | 89 | |||||||||
| d | 90 |
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