# Selina Concise Class 8 Math Chapter 22 Data Handling Exercise 22A Solution

### Selina Concise Class 8 Math Chapter 22 Data Handling Exercise 22A Solution

Concise Mathematics – Class 8 Selina Exercise 22A Solution by experts | 22A Selina Concise Solution Class 8 | Class 8 Selina Concise Ex 22A Page 248 Solution | RK Bansal Class 8 ICSE Book Solution Online.

### Exercise 22(A)

(1) Arrange the following data as an array (in ascending order)

(i) 7, 5, 15, 12, 10, 11, 16

(ii) 6.3, 5.9, 9.8, 12.3, 5.6, 4.7

Solution: (i) 5, 7, 10, 11, 12, 15, 16

(ii) 4.7, 5.6, 5.9, 6.3, 9.8, 12.3

(2) Arrange the following data as an array (descending order)

(i) 2, 0, 3, 4, 1, 2, 3, 5

(ii) 9.1, 3.7, 5.6, 8.3, 11.5, 10.6

Solution: (i) 5, 4, 3, 3, 2, 2, 1, 0

(ii) 11.5, 10.6, 9.1, 8.3, 5.6, 3.7

(3) Construct a frequency table for the following data:

(i) 6,7, 5, 6,8, 9, 5, 5, 6, 7, 8, 9, 8, 10, 10, 9, 8, 10, 5, 7, 6, 8

(ii) 3, 2, 1, 5, 4, 3, 2, 5, 5, 4, 2, 2, 2, 1, 4, 1, 5, 4

(4) Following are the marks obtained by 30 students in an examination.

Taking class intervals 0 -1, 10-20, ________, 40-50; construct a frequency table.

(5) Construct the frequency distribution table for the following data, taking class intervals 4-6, 6-8, _____, 14 – 16.

Solution:

(6) Fill in the blanks:

(i) Lower class limit of 15 – 18 is ________

Ans. 15

(ii) Upper class limit 24 – 30 is _______

Ans. 30

(iii) Upper limit of 5 – 12.5 is ______

Ans. 12.5

(iv) If the upper and the lower limits of a class interval are 16 and 10, the class interval is _____

Ans. 10 – 16

(v) If the lower and the upper limits of a class interval are 7.5 and 12.5, the class interval is ______

Ans. 7.5 – 12.5