CAIE IGCSE Mathematics Core 9 Statistics Topic Practice

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Question 1

[Maximum number: 6]

Miguel works in an office.

Question (a)

(a)
Figure for Question (a) — CAIE IGCSE Mathematics Core

Miguel records the length of time of each telephone call he receives, correct to the nearest minute.
The recorded times are shown in the table.

[ 6 ]

Question (i)

(i)
Figure for Question (i) — CAIE IGCSE Mathematics Core

Complete the frequency table.
You may use the tally column to help you.

[ 2 ]

Question (ii)

(ii)

Draw a bar chart to show this information.

Complete the scale on the frequency axis.

Figure for Question (ii) — CAIE IGCSE Mathematics Core
[ 3 ]

Question (iii)

(iii)

Use the bar chart to write down the modal group.

[ 1 ]

Question 2

[Maximum number: 4]

Question (a)

(a)

A shop sells 58 televisions in one week.
The bar chart shows the number of televisions that the shop sells on five of the days.

Figure for Question (a) — CAIE IGCSE Mathematics Core
[ 3 ]

Question (i)

(i)

Write down the number of televisions that the shop sells on Monday.

[ 1 ]

Question (ii)

(ii)

Find the fraction of the televisions that the shop sells on Sunday.

[ 1 ]

Question (iii)

(iii)

Write down the mode.

[ 1 ]

Question (b)

(b)
Figure for Question (b) — CAIE IGCSE Mathematics Core

The scatter diagram shows the prices of different sized televisions.

Write down the type of correlation shown in the scatter diagram.

[ 1 ]
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