If we were studying a sample of 100 students and their examination performance and if the standard deviation of the list of results was say 14, then we could calculated the standard error by ___________?
(A) Dividing the square root of the number of items in the sample by the mean
(B) Dividing standard deviation by number of items in the sample
(C) Dividing the standard deviation by the square root of the number of items in the sample
(D) We cannot calculate standard error on account of inadequacy of information
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