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A set of data consists of following 5 numbers : { 0, 2, 4, [#permalink]
26 Sep 2008, 08:26

A set of data consists of following 5 numbers : { 0, 2, 4, 6, 8}

What two numbers if added to create a set of 7 numbers, will result in a std deviation that is closest to the standard deviation for the set with just the original five numbers.

A. -1 and 9 B. 4 and 4 C. 3 and 5 D. 2 and 6 E. 0 and 8 _________________

Re: Standard Deviation Problem [#permalink]
26 Sep 2008, 10:55

krishan wrote:

A set of data consists of following 5 numbers : { 0, 2, 4, 6, 8}

What two numbers if added to create a set of 7 numbers, will result in a std deviation that is closest to the standard deviation for the set with just the original five numbers.

A. -1 and 9 B. 4 and 4 C. 3 and 5 D. 2 and 6 E. 0 and 8

For my Cambridge essay I have to write down by short and long term career objectives as a part of the personal statement. Easy enough I said, done it...