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Author Question: 150 students in a math class take the final exam. The scores on the exam have an approximately ... (Read 998 times)

erika

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Question 1

150 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with mean μ = 65 and standard deviation σ = 10.

The number of students scoring 65 points or more is approximately
◦ 75.
◦ 65.
◦ 50.
◦ 95.
◦ none of these

Question 2

150 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with mean μ = 65 and standard deviation σ = 10.

The average score on the exam was approximately
◦ 75.
◦ 65.
◦ 10.
◦ 50.
◦ none of these


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Marked as best answer by erika on May 5, 2020

zacnyjessica

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erika

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Reply 2 on: May 5, 2020
Great answer, keep it coming :)


cam1229

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

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