9 Nov 2021
Problem 118h
Page 149
Section: BRINGING IT TOGETHER: HOMEWORK
Chapter 2: DESCRIPTIVE STATISTICS
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9 Nov 2021
Given information
engineering conferences were announced. Four conferences lasted two days. Thirty-six lasted three days. Eighteen lasted four days. Nineteen lasted five days. Four lasted six days. One lasted seven days. One lasted eight days. One lasted nine days.
And the length (in days) of an engineering conference.
Step-by-step explanation
Step 1.
Standard deviation is a measure of dispersion.
The formula to calculate sample standard deviation is:
where, is the mean, is the frequency and .
The mean for this data is .So, .
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