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Author Question: In a statistics class, the average grade on the final examination was 75 with a standard deviation ... (Read 80 times)

M1ch3a

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on: Mar 25, 2023

In a statistics class, the average grade on the final examination was 75 with a standard deviation of 5.  Use Chebyshev’s theorem to answer the following questions.


a.At least what percentage of the students received grades between 50 and 100?

b.

Determine an interval for the grades that will be true for at least 70% of the students.  (Hint:  First, compute the Z-score.)


Essentials of Statistics for Business and Economics ¦ Anderson, Sweeney, Williams, Camm, Cochran ¦ 7th Edition
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Marked as best answer by M1ch3a on Mar 25, 2023

Afvelasquez

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Reply #1 on: Mar 25, 2023
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M1ch3a

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Reply 2 on: Mar 25, 2023
Wow, this really help

emsimon14

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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