I am given a table that looks a bit like this:

cost (£c) Frequency

0<c<50 4

50<c<100 8

100<c<150 7

150<c<200 10

200<c<250 11

the question says: find the class interval in which the median lies

PLEASE HELP!!!!!!!!!!!! :)

Posted Sun 3rd June, 2012 @ 17:34 by

Josie Wilders
It's very simple they just try to confuse you!

The question means find the group where the median is.

So add up all the frequencys:

4+8+7+10+11= 40

Then divide by how many there are and you have 5 so 40/5=8

Then imagine you have each one lined up and you have to count 8 along the line.

So the 8th one would fall in the group 50<c<100

It's hard to write but if you don't understand just comment and I'll explain again :)

Answered Sun 3rd June, 2012 @ 17:39 by

Georgia
Georgia, i think you got confused with the mean. The median which you josie were trying to do is put the numbers in order and choose the one in the middle. SIMPLES :)

Answered Thu 8th January, 2015 @ 14:18 by

siobhannnn
Thanks so much! I understand now :)

Answered Sun 3rd June, 2012 @ 17:50 by

Josie Wilders
Answered Sun 3rd June, 2012 @ 17:54 by

Georgia