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2.2.3 Central tendency, variation and standard deviation

2.2.3 Central tendency, variation and standard deviation

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Question 4

The masses, m m\,m kg, of 50 cars are summarised in the table below.

Mass (kg)Frequency
1000<m≤12001000 < m \le 12001000<m≤12008
1200<m≤14001200 < m \le 14001200<m≤140022
1400<m≤16001400 < m \le 16001400<m≤160014
1600<m≤20001600 < m \le 20001600<m≤20006

Estimate the mean mass of these cars.

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2.2.3 Central tendency, variation and standard deviation Questions

  1. A Level
  2. /Maths
  3. /2.2.3 Central tendency, variation and standard deviation

39 exam-style questions on AQA A Level Maths 2.2.3 Central tendency, variation and standard deviation. Each one has a worked solution and a mark scheme showing where the marks go.

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