Fell runners from the Esk Club and the Irt Club were keen to see which club had the fastest runners overall. They decided that all the members from both clubs would take part in a fell run. The time each runner took to complete the run was recorded. The results are summarised in the box plot.

a Write down the time by which 50% of the Esk Club runners had completed the run. b Write down the time by which 75% of the Irt Club runners had completed the run. c Explain what is meant by the cross (X) on the Esk Club box plot. d Compare and contrast these two box plots. e Comment on the skewness of the two box plots. f What conclusions can you draw from this information about which club has the fastest runners?AppendixLO1

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Esk Irt 25 30 35 40 45 50 55 60 Time in minutes X - 65 FR 70 75 80