Essay
The questions below refer to decisions made by statisticians and referred to in the text. Answer each of the following questions in a few sentences:
(a)Why was rather than
chosen to be used in building the formula for the variance?
(b)Why is s more commonly used than s2 as a more useful measure of variability?
(c)Why was chosen over
when using s2 to estimate σ2?
(d)What factor should be considered when choosing between the median or mean as a description of the "center" of a data set?
Correct Answer:

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a)Because
will always be 0.
b)Because i...View Answer
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Correct Answer:
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b)Because i...
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