Gemma records the times, in seconds, taken for a group of children and a group of adults to complete a puzzle. The box-and-whisker plot shows information about the times taken for the children to complete the puzzle. Find the interquartile range of the times taken for the children to complete the puzzle. .............seconds

Mathematics

IGCSE&ALevel

CAIE

Exam No：0580_s20_qp_21 Year：2020 Question No：12(a)

Answer:

E9.6.1 Construct and use cumulative frequency diagrams.

E9.6.2 Estimate and interpret the median, percentiles, quartiles and interquartile range.

E9.6.3 Construct and interpret box-and-whisker plots.

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