Eleven Plus Mathmatics

This is a worked example from Statistics 1 – Advancing Maths for AQA (Heinemann) 2000. ISBN 0-435-51312-5.

A tasting panel was asked to assess biscuits baked from a new recipe. Each member was asked to assign a score from 0 – 100 for texture (X) ,flavour (Y) and sweetness (Z).

Taster
X
1 43
2 59
3 76
4 28
5 53
6 55
7 81
8 49
9 38
10 47

Y
1 67
2 82
3 75
4 48
5 91
6 63
7 67
8 51
9 44
10 54

Draw a scatter diagram to illustrate the data.

Your eleven plus child, with the aid of some graph paper, should be able to make sense of this data. Your child may also be able to make deductions and comment on the spread of the data.

(“Mum, is this really A Level work?”)

The second part of the question asked for the product moment correlation to be calculated. This, however, may be beyond the scope of a traditional eleven plus syllabus!

Reassure your child that the work that is being done towards the eleven plus will have value one day.