Question: Edward is practising statitical calculations using values from the large data set. He selects a random day from June 1987 and calculates the following summary

Edward is practising statitical calculations using values from the large data set. He selects a random day from June 1987 and calculates the following summary statistics for the daily mean temperatute, X degrees, for that day from the eight locations in the large data set. Sxx = 133 and sum X squared = 2311. Using these statistics show that the mean of X is 16.5 and the standard deviation of X

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