This is tricky so have a go at a question and let us know if you get stuck. But make sure you show us what you've done e.g. attach a picture of your histogram/working.
© Copyright The Student Room 2017 all rights reserved
The Student Room, Get Revising and The Uni Guide are trading names of The Student Room Group Ltd.
Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE