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23 March, 11:12

A data set has a mean of 255 and a standard deviation of 12. All the data values are within two standard deviations of the mean. Which could be the maximum value of the data

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  1. 23 March, 13:12
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    The maximum value is Mean + 2 standard deviation that is 255+24 = 249 which correspond to 95% of the total
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