STATISTICAL TECHNIQUES AND TOOLS
MEASURE OF STANDARD DEVIATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The Sleep Shop conducted a survey to determine the average number of hours that people sleep at night. The results are shown here.# of Hours Spend Sleeping at Night Frequency 4 1 5 2 6 37 6 8 109 410 2Find the range, the sample variance, and the sample standard deviation.
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9 hours, 2.11, 4.5 hours
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6 hours, 778, 27.9 hours
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9 hours, 2.11, 1.5 hours
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6 hours, 2.11, 1.5 hours
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Explanation:
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