Handling Data 1
2 marks · EasyA group of friends send the following number of text messages in one day:
3, 7, 4, 2, 6
Work out the mean number of text messages sent.
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
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4.4 (±0.01)
Common mistakes: Dividing by incorrect number of values; Incorrect total; Rounding incorrectly
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Marking points
M1 · 1 mark · Method: adds all values AND divides by 5 (even if calculation incorrect)
A1 · 1 mark · Accuracy: correct answer, 4.4
Worked solution
The mean is 4.4.