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For a distribution of 250 heights , calculations showed that the mean , standard deviation , 1 and 2 were 54 inches , 3 inches

For a distribution of 250 heights , calculations showed that the mean , standard deviation , 1 and 2 were 54 inches , 3 inches , 0 and 3 inches respectively. It was however , discovered on checking that the two items 64 and 50 in the original data were wrongly written in place of the correct values 62 and 52 inches respectively .Calculate the correct frequency constants

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Cambridge International AS & A Level Mathematics Probability & Statistics 1 Coursebook

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