Mathematics, 20.03.2022 09:50 heyheyheyhey3

The following frequency distribution shows the daily allowances (to the nearest RM) of all the 60 workers of a company.

Daily allowances (in RM) Frequency

50 – 59 4

60 – 69 16

70 – 79 15

80 – 89 20

90 – 99 5

(i) Calculate the mean and the standard deviation.

(ii) Calculate the mode.

(iii) Calculate the median.

The following frequency distribution shows the daily allowances (to the nearest RM)

of all the 60

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