CIE · IGCSE · Mathematics
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Topic: Statistics: Histograms with frequency density. Pick an answer — get the mark scheme instantly.
Question · Difficulty 2/3
The histogram shows the waiting times of 150 patients at a clinic in Mumbai. [Histogram showing: 0-10 min (fd=2.4), 10-15 min (fd=5.6), 15-25 min (fd=3.2), 25-40 min (fd=1.2)] Calculate the number of patients who waited between 10 and 25 minutes.
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