4024/11 May/Jun 2020, Question 12: Averages from Frequency Tables
Cambridge O Level Mathematics 4024 · Paper 11 (Non-calculator) · Non-calculator · 3 marks
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The question, in short
From a bar chart of occupant counts for 20 cars, give the most common value and work out the average occupants per car.
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Part (a) · 1 mark
State the people count that occurs most often in the chart.
- 1The tallest bar is 2 people (frequency 7)
- 2Mode = 2
Answer2
Part (b) · 2 marks
Work out the average occupants per car using the chart frequencies.
- 1Total people = 2 × 1 + 7 × 2 + 6 × 3 + 4 × 4 + 1 × 5 = 2 + 14 + 18 + 16 + 5 = 55
- 2Number of cars = 20
- 3Mean = 55 ÷ 20 = 2.75
Answer2.75
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Also searched as: 4024/11/M/J/20 · 4024_s20_qp_11 · 4024 s20 11 · question 12.
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