## ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 17 Data Handling Check Your Progress

Question 1.

State whether the following statement is true or false. Justify your answer:

“The median is always one of the numbers in data.”

Solution:

Question 2.

Marks obtained by five students of class VII in quarterly and half-yearly examination in Mathematics (out of 25) are given below:

Represent the above data by a bar graph and answer the following questions:

(i) Do you see any improvement? Justify your answer.

(ii) Who has not done better?

Solution:

Question 3.

Find the mean of the factors of 12.

Solution:

Question 4.

Find the median and the mode of the following data:

2, 14, 16, 12, 13, 14, 16, 13, 10, 14, 18, 9

Solution:

Question 5.

Heights (in cm) of 25 students are given below:

168, 165, 163, 160, 163, 161, 162, 164, 163, 162, 164, 163, 160, 163, 157, 165, 148, 163, 164, 160, 165, 163, 152, 155, 163.

What is the mode of their heights?

Solution:

Question 6.

A die is thrown, what is the probability of getting an odd prime number?

Solution:

Question 7.

A letter is chosen at random from the letters of the word MATHEMATICS, what is the probability of getting

(i) letter M

(ii) a vowel

(iii) a consonant?

Solution: