Mathematics (Linear) - 1ma0 Frequency Tables Worksheet - Edexcel Gcse Page 6
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87. 80 people work in Jenny’s factory.
The table shows some information about the annual pay of these 80 workers.
Annual pay (£x)
Number of workers
10 000 < x 14 000
32
14 000 < x 16 000
24
16 000 < x 18 000
16
18 000 < x 20 000
6
20 000 < x 40 000
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(a) Write down the modal class interval.
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(1)
(b) Find the class interval that contains the median.
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(2)
(c) Work out an estimate for the mean annual pay.
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(3)
(d) Why is your answer to part (c) and estimate?
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(1)
(7 marks)
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