The Student Room Group

Interpolation

When do we use the upper bounds and lower bounds of the group eg

140-150 ?
Reply 1
Original post by zed963
When do we use the upper bounds and lower bounds of the group eg

140-150 ?

I think you use upper and lower bounds when there is no overlap between the groups. So 125-139 and 140-154. You would use 124.5 and 139.5.
And when they don't overlap so 150-160. 160-170 you don't.
I may be wrong but that's what I have been doing :redface:
Reply 2
Original post by Super199
I think you use upper and lower bounds when there is no overlap between the groups. So 125-139 and 140-154. You would use 124.5 and 139.5.
And when they don't overlap so 150-160. 160-170 you don't.
I may be wrong but that's what I have been doing :redface:


They do overlap:confused:
Reply 3
Original post by zed963
They do overlap:confused:

My bad lmao I was supposed to say when they overlap you don't use upper and lower bounds. :colondollar:

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