The heights of 10 girls were measured in cms and the results are as follows : 135, 150, 139, 128, 151, 132, 146, 149, 143, 141.
The height of girls are arranged in ascending order = 128, 132, 135, 139, 141, 143, 146, 149, 150, 151.
(i) What is the height of the tallest girl?
(ii) What is the height of the shortest girl?
(iii) What is the range of the data ?
(v) What is the mean height of the girls?
(v) How many girls have heights more than the mean height.