4MA0 Higher June 2013 Paper 4 Q18

EdexcelHigherOld spec3 marksHistograms

18 The histogram shows information about the times, \(t\) hours, for which some cars were left in a car park.

Histogram of time (t hours) from 0 to 10 with frequency density up to 250: bars 0–2 at 100, 2–3 at 240, 3–4 at 225, 4–5 at 160, 5–7 at 50, 7–10 at 25

Calculate an estimate for the number of cars which were left in the car park for between 4.5 hours and 8 hours.

(3)

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