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 \(k^{2} + 1\) 6 2 3 4 (a) If the mean s...
Question 1 Report
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 | \(k^{2} + 1\) | 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?
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