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chirfan

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posted by chirfan on 11/7/2009 11:28:55 AM | status: Live | Earned Karma: 0

variance

Course	Textbook	Chapter	Problem	Needs by
Statistics and Probability	Statistics (11th) by McClave, Sincich, Mendenhall	N/A	N/A	11/8/2009 at 12:00:00 PM

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The mean of 5 observations is 15 and variance is 9. If two more observations having values -3 and 10 are combined with these 5 observations, what will be the new mean and variance of 7 observations?

Tags: Statistics and Probability, Statistics and Probability, Statistics (11th)

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