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Mathematics, 03.03.2021 20:00 wade98

Age (a) in years Frequency

18 < a < 20 3

20 < a < 22 2

22 < a < 24 7

24 < a < 26 8

26 < a 0

a) Find the modal class interval.​
b)work out an estimate of the mean of these employees.

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Age (a) in years Frequency

18 < a < 20 3

20 < a < 22 2

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