Question

Relation between sum of squares and square of sums

Answer 1

The sum of the squared deviations, (X-Xbar)², is also called the sum of squaresor more simply SS. SS represents thesum of squared differences from the mean and is an extremely important term in statistics. Variance. The sum of squares gives rise to variance.

Answer 2

Answer:

The sum of squares is a measure of deviation from the mean. ... The arithmetic mean is simply calculated by summing up the values in the data set and dividing by the number of values. Let's say the closing prices of Microsoft (MSFT) in the last five days were 74.01, 74.77, 73.94, 73.61, and 73.40 in US dollars..

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