## ML Aggarwal Class 6 Solutions for ICSE Maths Chapter 15 Data Handling Objective Type Questions

**Mental Maths**

Question 1.

Fill in the blanks:

(i) A ……. is a collection of numerical figures to give some information.

(ii) Each numerical figure in data is called an ………..

(iii) The number of times a particular observation occurs in a data is called … of the observation.

(iv) A data arranged in ascending or descending order is called an ………… data.

(v) A pictorial representation of a data is called a …………

(vi) If represent 5 students then represent ………… students.

(vii) In a pictograph, if one bicycle represents 20 bicycles then 140 bicycles can be represented by ………… bicycles.

(viii)In a pictograph, if one electric bulb represents 10 bulbs then the picture of half a bulb will represent ………… bulbs.

(ix) In a pictograph, if the symbol represents 50 fruits baskets, then represent ………… fruit baskets.

(x) The frequency of 8 is written symbolically as ………… using tally marks.

(xi) In a bar graph, the bars are of uniform …………

(xii) The mean of the first 8 natural numbers is …………

Solution:

Question 2.

State whether the following statements are true (T) or false (F):

(i) If the data is large, it is difficult to get information from raw data.

(ii) Pictographs and bar graphs help us in understanding and analyzing a data.

(iii) In a bar graph, bars can be drawn either vertically or horizontally.

(iv) In a bar graph, width of a bar has no significance. It is only for eye attraction.

(v) Usually, the tally marks are recorded in bunches of 5.

(vi) The frequency 9 is represented as filtlll using tally marks.

(vii) Mentioning of scale is necessary in pictographs.

(viii) Mean is always one of the number in a given data.

(ix) Median is always one of the numbers in a given data.

Solution:

**Multiple Choice Questions**

Observe the following pictograph which shows the number of ice cream cones sold by school ‘ canteen during a week. Chose the correct answer from the given options for questions 3 to 7:

Question 3.

The minimum number of ice cream cones were sold on:

(a) Monday

(b) Saturday

(c) Tuesday

(d) Thursday

Solution:

Thursday (d)

Question 4.

The maximum number of ice cream cones were sold on:

(a) Tuesday

(b) Friday

(c) Wednesday

(d) Thursday

Solution:

Tuesday (a)

Question 5.

Ratio of the number of ice cream cones sold on Saturday to the number of ice cream cones sold on Wednesday is.

(a) 3 : 2

(b) 2 : 3

(c) 4 : 5

(d) 4 : 7

Solution:

Question 6.

Total number of ice cream cones sold during the whole week was:

(a) 33

(b) 67

(c) 65

(d) 57

Solution:

Question 7.

If the cost of one ice cream cone is ₹20, then the sale value on Thursday was:

(a) ₹70

(b) ₹100

(c) ₹140

(d) ₹1340

Solution:

Observe the adjoining bar graph, showing the number of one-day international matches played by cricket teams of different countries. Choose the correct answer from the given four options for questions 8 to 11:

Question 8.

Which country played a maximum number of matches?

(a) India

(b) England

(c) Pakistan

(d) Australia

Solution:

Australia (d)

Question 9.

How many matches did South Africa play?

(a) 16

(b) 18

(c) 20

(d) 24

Solution:

18 (b)

Question 10.

How many more matches were played by India than Pakistan?

(a) 6

(b) 12

(c) 24

(d) 30

Solution:

Question 11.

Ratio of the number of matches played by India to the number of matches played by Sri Lanka is

(a) 4 : 5

(b) 5 : 4

(c) 4 : 3

(d) 7 : 6

Solution:

**Choose the correct answer from the given four options for questions 12 and 13:**

Question 12.

The mean of the first 6 odd natural numbers is

(a) 5

(b) 5.5

(c) 6

(d) 6.5

Solution:

Question 13.

The median of the numbers 4, 4, 7, 5, 7, 6, 1, 3, 11 is

(a) 7

(b) 6

(c) 5

(d) 4

Solution: