The following table shows the distribution of test scores in a class.
Scores
1
2
3
4
5
7
8
9
10
No of pupils
1
1
5
3
6
2
3
4
(a) If the mean score of the class is 6, find the : (i) value of k (ii) median score. (b) Draw a bar chart for the distribution. (c) If a pupil is picked at random, what is the probability that he/ she will score less than 6?
