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25 June, 22:09

A scientist calculated the mean and standard deviation of a data set to be and. she then found that she was missing one data value from the set. she knows that the missing data value was exactly 3 standard deviations away from the mean. what was the missing data value? 129 147 360 369

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  1. 26 June, 00:34
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    Its 147, I just took the test!
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