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Standard Level

12.03 Grouped data

Interactive practice questions

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

Easy
< 1min

Find the class centre for the class interval $19\le t<23$19t<23 where $t$t represents time.

Easy
< 1min

Some data is grouped into class intervals.

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
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