Given the following data set from a sample, solve each of the statistics listed below it. Be sure to show all the steps in your solution to receive partial marks when answers are wrong.

x f

10 2

9 3

8 3

7 5

6 6

5 4

4 3

3 2

2 2

Mean (2 marks)

Median (4 marks)

Variance (4 marks) Standard Deviation (2 marks) Percentile Rank of X = 7 (4 marks)

The third quartile (Q₃) (4 marks)