Question

what is the mean of 31, 37, 35, 38, 42, 23, 17, 18, 35, 25, 35, 29

Answer 1

Mean = Sum of all observations/Number of observations

If n is odd, then use the formula: Median = (n + 1)/2th observation. If n is even, then use the formula: Median = [(n/2)th obs.+ ((n/2) + 1)th obs.]/2