Tutor Marked Assignment 2

Median and Quartiles

There are 3 questions in this section. Complete this question and pass your answer to your tutor for marking.

Calculate the median, the other two quartiles, and the semi-interquartile range, for the following:

1. 31 22 45 24 30 33 40 19 27 22 34 26 24

 

2.

 

The table shows how many faulty light bulbs there are in boxes of six.

No. faulty 0 1 2 3 4 5 6
No. of boxes 47 53 20 8 5 3 1

 
3.

This table shows the value of sales made by 80 sales persons working for a company during a period of time:

Value of sales (£000) 25 - 30 30 - 35 35 - 40 40 -45 45 - 50 50 - 55
No. of salespersons 1 14 23 21 15 6


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