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Q17: Answers – Paper 3 – November 2018
Q17: Answers – Paper 3 – November 2018
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17) The police record the speed of vehicles passing a speed checkpoint.
The speeds are recorded in the table below.
The speeds are recorded in the table below.
a) Calculate an estimate of the mean speed of the vehicles.
[4 marks]
b) Explain why it is not possible to use the information from this table to calculate the exact value of the mean speed.
[1 mark]