4.

manager wants to give a pay rise to everyone who is paid less than the average salary.

This table shows the annual salaries of the employees in the company.

Employee

Salary (in £ thousands)

AJ

16

TM

23

WF

23

SW

22

MT

15.5

RD

18.5

JR

20

LS

23

PB

36

Tick all of the employees who are paid less than the median salary.

Answer: AJ, MT, RD, Jr

Explanation:

Given the following data:

AJ - 16

TM - 23

WF - 23

SW - 22

MT - 15.5

RD - 18.5

Jr - 20

LS - 23

PB - 36

Median salary can be calculated thus:

Arranging salary in ascending order of Magnitude:

15.5, 16, 18.5, 20, 22, 23, 23, 23, 36 (£ thousand)

Meduan salary is the 5th figure in the arrangement = £22 thousand

Therefore, those earning less than the median salary are:

AJ, MT, RD, Jr