CAIE IGCSE Mathematics Extended E9.2 Interpreting Statistical Data Topic Practice

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Covered syllabus points

E9.2.1 Read, interpret and draw inferences from tables and statisticalE9.2.2 Compare sets of data using tables, graphs and statistical measures.E9.2.3 Appreciate restrictions on drawing conclusions from given data

Question 1

[Maximum number: 2]

Question (a)

(a)
NOT TO SCALE

NOT TO SCALE

A, B, C and D lie on the circle.
TAS is a tangent to the circle at A.

[ 2 ]

Question (i)

(i)

Find the value of x.

[ 1 ]

Question (ii)

(ii)

Find the value of y.

[ 1 ]

Question 2

[Maximum number: 2]

Students in class P take a test.
These statistics show information about their marks.
- lower quartile =38
- median =53
- interquartile range =28
- range =81
- highest mark =96

Students in class Q take the same test.

For class Q, the median is 49 and the interquartile range is 35.
Make two comments comparing the distribution of marks for class P with that of class Q.
1.
2.

Question 3

[Maximum number: 1]

The box-and-whisker plot shows information about the mass, in kg, of some parcels.

Figure for Question 3 — CAIE IGCSE Mathematics Extended

Find the mass of the heaviest parcel.
kg\mathrm{kg}

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