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Help with Statistics Problem9

label Algebra
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schedule 0 Hours
account_balance_wallet $5

Find the range and the standard deviation (correct to two decimal places).

80, 94, 100, 100, 101
the range is already 21 but what is the standard deviation?


Dec 4th, 2014

range = 101-80= 21

mean = (80+ 94+ 100+ 100+ 101)/ 5= 475/5 = 95

SD = sqrt(((80-95)^2+(94-95)^2+(100-95)^2+(100-95)^2+(101-95)^2) / 5)

      = sqrt ( (225+1+25+25+36)/5)

      = sqrt ( 312/5)

     = sqrt (62.4)

    = 7.899 or 7.90

Dec 4th, 2014

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Dec 4th, 2014
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Dec 4th, 2014
Jun 26th, 2017
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