1. FIND THE MEAN OF 8, 15, 10, 22, 16, 4

2. THE MEAN OF 42, X, 26, 58, 38 IS 40. FIND X

3. THE MASSES OF FIVE BAGS ARE 38.6KG, 40.5KG, 46.8KG, 30.7KG, 44.4KG. CALCULATE THE MEDIAN MASS.

4. FIND THE MODE OF THESE NUMBERS 10, 8, 13, 16, 14, 9, 5, 18, 13, 8

5. CALCULATE THE RANGE OF THE FOLLOWING SETS OF DATA. 10, 11, 13, 14, 17, 19, 15, 12, 12, 15.