The mean is 42/9 = 4.667 (add all the numbers and divide by the count of the #'s)
The median is 5 (the middle number which would be the 5th number of the sorted sequence)
The modes are 2, 5 and 9 since these numbers appear twice each.
The range is 9-0= 9 (subtract the largest from the smallest number)
The midrange is (0+9)/2= 4.5 (add the smallest + largest number & divide by 2)
Hope this helps,