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10 Find the mode and median of the data: 13, 16, 12, 14, 19, 12, 14, 13, 14? 2

Section C

11 The following table shows the weights (in kg) of 15 workers in a factory: 3

Weight (in kg) 60 63 66 72 75

Number of 4 5 3 1 2
workers

Calculate the mean weight.

12 The ages in years of 10 teachers of a school are: 3

32, 41, 28, 54, 35, 26, 23, 33, 38, 40

i. What is the age of the oldest teacher and that of the youngest teacher?

ii. What is the range of the ages of the teachers?

iii. What is the mean age of these teachers?

13 The daily wages (in rupees) of 60 workers in a factory are given below: 3

Daily wages (in
Rs) 140 150 160 180 190

Number of 14 16 15 7 8
workers

Find the mean daily wages.

Section D

14 Organise the following marks in a class assessment, in a tabular form. 4

4, 6, 7, 5, 3, 5, 4, 5, 2, 6, 2, 5, 1, 9, 6, 5, 8, 4, 6, 7

(i) Which number is the highest?

(ii) Which number is the lowest?