SOLUTION: The graph illustrates the distribution of test scores taken by College Algebra students. The maximum possible score on the test was 110, while the mean score was 71 and the standar

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Question 1178777: The graph illustrates the distribution of test scores taken by College Algebra students. The maximum possible score on the test was 110, while the mean score was 71 and the standard deviation was 8.
47
55
63
71
79
87
95
Use the 68-95-99.7 Rule (Empirical Rule), not a calculator or other technology, to answer the following.
What is the approximate percentage of students who scored less than 55 on the test?
%
What is the approximate percentage of students who scored between 71 and 79 on the test?
%
What is the approximate percentage of students who scored between 55 and 87 on the test?
%
What is the approximate percentage students who scored between 63 and 79 on the test?
%
Answer by ikleyn(52781)   (Show Source): You can put this solution on YOUR website!
.


On the "68 - 95 - 99.7 rule" learn from these web-sites

https://towardsdatascience.com/understanding-the-68-95-99-7-rule-for-a-normal-distribution-b7b7cbf760c2

https://en.wikipedia.org/wiki/68%E2%80%9395%E2%80%9399.7_rule


and then use your knowledge.



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