jsnsnsns

18.04.2021 • 

Mathematics

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?
%

Ответ:

tyrique86

18.04.2021

Mathematics

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Did you need help with it or u just wanted the answer ?

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Ответ:

lasardia

18.07.2021

Mathematics

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Soil is the main abiotic reservoir for elements involved in local biogeochemical cycles, such as calcium and phosphorus. nutrient elements return to the abiotic reservoir via death, excretion, wastes. elements that are moving through the biotic or abiotic factors may be recycled, or they may be accumulated in a reservoir where they are held for a long period of time.

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