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Author Question: A quantitative data set has size 60. At least how many observations lie within 2 standard deviations ... (Read 135 times)

ec501234

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on: Apr 7, 2020

Question 1

A quantitative data set has mean 23 and standard deviation 2. At least what percentage of the observations lie between 19 and 27?
◦ 68%
◦ 75%
◦ 95%
◦ 25%

Question 2

A quantitative data set has size 60. At least how many observations lie within 2 standard deviations to either side of the mean?
◦ At least 14
◦ At least 57
◦ At least 60
◦ At least 46
Introductory Statistics ¦ Weiss ¦ 10th Edition
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Marked as best answer by ec501234 on Apr 7, 2020

leahchrapun

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Reply #1 on: Apr 7, 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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ec501234

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Reply 2 on: Apr 7, 2020
YES! Correct, THANKS for helping me on my review

xiaomengxian

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Reply 3 on: Yesterday
Excellent

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