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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 223 times)

erika

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on: May 5, 2020

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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Reply #1 on: May 5, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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erika

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Reply 2 on: May 5, 2020
Wow, this really help

dawsa925

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Reply 3 on: Yesterday
Gracias!

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