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Author Question: A student scores 56 on a geography test and 267 on a mathematics test. The geography test has a mean ... (Read 277 times)

kwoodring

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on: Feb 2, 2020

Question 1

A set of data items is normally distributed with a mean of 500. Find the data item in this distribution that corresponds to the given z-score.

z = -3, if the standard deviation is 30.
◦ 590
◦ 470
◦ 410
◦ 497

Question 2

A student scores 56 on a geography test and 267 on a mathematics test. The geography test has a mean of 80 and a standard deviation of 20. The mathematics test has a mean of 300 and a standard deviation of 22. If the data for both tests are normally distributed, on which test did the student score better?
◦ The student scored the same on both tests.
◦ The student scored better on the geography test.
◦ The student scored better on the mathematics test.
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Marked as best answer by kwoodring on Feb 2, 2020

cam1229

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Reply #1 on: Feb 2, 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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kwoodring

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Reply 2 on: Feb 2, 2020
Wow, this really help

bdobbins

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Reply 3 on: Yesterday
Excellent

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