The numbers of chocolate bars sold per day in a cinema over a period of 100 days are summarised in the following table. What is the greatest possible value of the interquartile range for the data? ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................

Mathematics

IGCSE&ALevel

CAIE

Exam No：9709_s20_qp_51 Year：2020 Question No：7(b)

Answer:

\(11-15\) and \(31-50\)
Greatest \(\mathrm{IQR}=50-11=39\)

Knowledge points:

5.1.3 understand and use different measures of central tendency (mean, median, mode) and variation (range, interquartile range, standard deviation) (e.g. in comparing and contrasting sets of data.)

Answer:

Knowledge points:

Solution:

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