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Foundation November 2017 Paper 1 Q14

EduqasFoundationCurrent spec5 marksBasic ProbabilityScatter Diagrams & Correlation

14.

(a)

Which scatter diagram would show the relationship between the age and height of a child? Put a tick in the box below the scatter diagram. [1]

Four scatter diagrams, Graph 1 to Graph 4, each with a tick box below: Graph 1 points going down, Graph 2 points going up, Graph 3 points in a horizontal line with one low point, Graph 4 points scattered
(b)

The scatter diagram shows the exam results in maths and science of a class of GCSE students.

Scatter diagram: Maths (%) from 0 to 100 against Science (%) from 0 to 100, with 9 points plotted
(i)

Two students had higher marks in science than they did in maths.

Write down the maths and science marks of these two students. [2]

Student 1   Science mark ………………   Maths mark ………………

Student 2   Science mark ………………   Maths mark ………………

(ii)

One of the students from the class is chosen at random.
Find the probability that this student scored more than 70% in maths. [2]

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