This resource is for GCSE Higher revision but can also be used for KS3. This lesson goes through being able to identify the modal class in a grouped table and also being able to estimate the mean from a grouped table. More able students may also be able to solve complex problems involving making judgements regarding the mean of a grouped table taking them up to a Grade B. There is also a worksheet for students to work through.
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I just want to double check that the MEAN answer on page 2 isn't 2.19 and not 1.9 since 114/52=2.19.
Excellent resources
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