x Turn on thread page Beta
 You are Here: Home >< Maths

# S1 interpolation help watch

1. Hello, i understand how to do interpolation but i have a question where the median is in an awkward class. I'll attach a photo so you know what i mean. For this question, the median is in the class 3.0-3.5. I know the upper bound would be 4.0 but what would the lower bound be? Especially since the class before finishes at 3.0 aswell...
Thanks

Posted from TSR Mobile
2. (Original post by jessyjellytot14)
Hello, i understand how to do interpolation but i have a question where the median is in an awkward class. I'll attach a photo so you know what i mean. For this question, the median is in the class 3.0-3.5. I know the upper bound would be 4.0 but what would the lower bound be? Especially since the class before finishes at 3.0 aswell...
Thanks

Posted from TSR Mobile
Since the upper bound of one group matches the lower bound of the next group, then those are the class boundaries..

If the median is in the 3.0 to 3.5 group, then the bounds are 3.0 and 3.5.

Puzzled as to why you said the upper bound was 4.0.

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: October 22, 2015
Today on TSR

### Loughborough better than Cambridge

Loughborough at number one

Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams