Q1 of 174 Page 597

The range of the data
12, 25, 15, 18, 17, 20, 22, 6, 16, 11, 8, 19, 10, 30, 20, 32 is

Range = maximum value – minimum value

= 32 – 12 = 26

؞ Range = 26.

The ages of the employees of a company are given below:

Age (in years)	19	21	23	25	27	29	31
Number of persons	13	15	16	18	16	15	13

Find the mean, median and mode for the above data.

The following table shows the weights of 12 students.

Weight (in kg)	47	50	53	56	60
Number of students	4	3	2	2	4

The class mark of the class 100-120 is

In the class intervals 10-20, 20-30, the number 20 is included in

The range of the data12, 25, 15, 18, 17, 20, 22, 6, 16, 11, 8, 19, 10, 30, 20, 32 is