<PRE><B>Question 1202390</B>
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I do not see any question in your post.


What &amp;nbsp;I &amp;nbsp;see in it, &amp;nbsp;are the statements, &amp;nbsp;only, &amp;nbsp;that do not require my response.



&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;But any way, &amp;nbsp;look into these &amp;nbsp;Internet sources



https://math.answers.com/statistics/What_is_the_relative_frequency_of_score_less_than_120_using_the_68-95-99.7_rule_if_a_set_of_test_scores_is_normally_distributed_with_a_mean_of_100_and_a_standard_deviation_of_20



https://www.algebra.com/algebra/homework/Probability-and-statistics/Probability-and-statistics.faq.question.275401.html



https://math.libretexts.org/Courses/Prince_Georges_Community_College/MAT_1130_Mathematical_Ideas_Mirtova_Jones_(PGCC%3A_Fall_2022)/04%3A_Statistics/4.05%3A_The_Normal_Distribution



Please let me know if you find there something useful and relevant to your needs.



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