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iGCSE (2021 Edition)

18.08 Grouped data graphs

Interactive practice questions

Find the class centre for the class interval $17$17-$22$22.

Easy
< 1min

If the range (difference between the highest and lowest scores) of a set of continuous data is $20$20, what is the size of each class interval if we group the data into:

Easy
2min

The frequency table below shows the resting heart rate of some people taking part in a study.

Easy
2min

As part of a fuel watch initiative, the price of petrol, $p$p, at a service station was recorded each day for $21$21 days. The frequency table shows the findings.

Easy
< 1min
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Outcomes

0607C11.4C

Mean, mode, median and range from grouped discrete data.

0607C11.7B

Use of a graphic display calculator to calculate mean for grouped data.

0607E11.4C

Mean, mode, median and range from grouped discrete data.

0607E11.5

Mean from continuous data.

0607E11.7B

Use of a graphic display calculator to calculate mean for grouped data.

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