raeann105 wrote:
Bunuel wrote:
Set P consists of 5 items. The standard deviation of the items in Set P is S. Is S>2?
(1) All the items in Set P are different even numbers between 1 and 19.
(2) The smallest number in the set is 10.
(1) All the items in Set P are different even numbers between 1 and 19.
(2) The smallest number in the set is 10.
Expert help please. A bit of math theory question...what is the utility of standard deviation if intuitively I think SD of set (2,4,6,8,10) should be 2? When I calculate the SD as\(\sqrt{8}\) , what is this result telling me? What would be the benefit of calculating SD with this set of numbers?
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