Determine the mean and variance of the original data
Question: A data set was coded by subtracting 20 from each value and then multiply each difference by 5. The mean and variance of the coded data are 8 and 15,respectively. Determine the mean and variance of the original data.
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A data set was coded by subtracting 20 from each value and then multiply each difference by 5. The mean and variance of the coded data are 8 and 15,respectively. Determine the mean and variance of the original data.
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