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I am given a table that looks a bit like this:
cost (£c) Frequency
the question says: find the class interval in which the median lies
PLEASE HELP!!!!!!!!!!!! :)
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:
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 :)
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 :)
Thanks so much! I understand now :)
You're welcome :)