The mean of the numbers 1, 4, k, (k + 4) and 11 is (k + 1). Calculate the : (a) value of k ; (b) standard deviation.
Question 1 Report
The mean of the numbers 1, 4, k, (k + 4) and 11 is (k + 1). Calculate the :
(a) value of k ;
(b) standard deviation.
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