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Author Question: On a multiple choice test with 27 questions, each question has four possible answers, one of which ... (Read 63 times)

RYAN BANYAN

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on: Apr 7, 2020
On a multiple choice test with 27 questions, each question has four possible answers, one of which is correct. For students who guess at all answers, find the standard deviation for the random variable X, the number of correct answers.
◦ 2.163
◦ 2.205
◦ 2.208
◦ 2.25
Introductory Statistics ¦ Weiss ¦ 10th Edition
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Marked as best answer by RYAN BANYAN on Apr 7, 2020

bfulkerson77

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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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Only 59% of students answer this correctly


RYAN BANYAN

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

mammy1697

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Reply 3 on: Yesterday
Gracias!

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