Data Handling(6th Grade > Mathematics ) Questions and answers for exam Preparation

6th Grade > Mathematics

DATA HANDLING MCQs

Total Questions : 94 | Page 6 of 10 pages

Question 51.

Data and information are the same.

True
False
VI 'C'
VI 'D'

Discuss Question

Answer: Option B. -> False
:
B

Data is a collection of facts such as numbers, words, measurements, observations or even just descriptions of things while information is something that we get when we analyse data. Thus, data and information are not the same.

Question 52.

Given below are the marks (out of 100) in mathematics obtained by 40 students of Class VI in an annual examination.

Which section has arranged their marks in ascending order?

VI 'A'
VI 'B'
VI 'C'
VI 'D'

Discuss Question

Answer: Option B. -> VI 'B'
:
B

Class VI 'B' has arranged the marks in ascending order as
08 < 12 < 15 < 20 < 45 < 67 < 78 < 88 < 90 < 95

Question 53.

The monitor of your class did a survey, asking each of the students on the number of magazines they have received. The following are the results:

0,0,3,0,1,4,0,2,5,2,1,0,1,2,6,1,0,0,1,3,2,,1,2,0,0,6,2,2,1,1

Make a tally and answer how many of the students had less than one magazine?

Discuss Question

Answer: Option B. -> 9
:
B

Less than one means zero and there were 9 students who did not receive any school magazine.

Question 54.

The information represented by a bar graph can never be represented by a pictograph.

True
False
Vipul
Shruti

Discuss Question

Answer: Option B. -> False
:
B
This statement is false. The information which can be represented by a bar graph can be represented by a pictograph too. However, the preference may vary depending upon convenience and the context.

Question 55.

Which of the following is correct about data?

Data is collection of numbers.
Data can give us information.
Data is information.
None of these.

Discuss Question

Answer: Option A. -> Data is collection of numbers.
:
A and B

A data is a collection of numbers gathered to give some information. It should be noted that data and information are not the same thing.

Question 56.

From the pictograph given below, who has scored highest number of goals?

Discuss Question

Answer: Option B. -> B
:
B

We can see that Player B has the most number of balls in the pictograph i.e. 8 balls. Hence, B is the top scorer as the number of balls in pictograph represents the number of goals scored by the player.

Question 57.

In a birthday celebration, Mango, Vanilla, Chocolate flavoured ice-creams were served. If you want to represent the number of people who like different flavours, the best way to represent it can be given by option___

Discuss Question

Answer: Option B. -> B
:

To find out how many people like different flavours, the representation given in Option 1 is difficult to use, as we have to count the number of dots in the circles. Instead, we can use the table given in Option 2, where the number of people and their favourite flavours are tabulated.

Question 58.

We have marks of different students in three different tables below. Which one of the following is the easiest to analyse?
A) $\begin{matrix} Student & Marks scored (Out of 100) A & 77 B & 65 C & 93 D & 42 E & 88 \end{matrix}$

B) $\begin{matrix} Student & Marks scored (Out of 100) E & 88 D & 42 C & 93 B & 65 A & 77 \end{matrix}$

C) $\begin{matrix} Student & Marks scored (Out of 100) D & 42 B & 65 A & 77 E & 88 C & 93 \end{matrix}$

A
B
C
Both A & B

Discuss Question

Answer: Option C. -> C
:
C
The data in table C is organised.
It is organised in ascending order.
We can easily answer the questions asked from the data in table C as compared to other data sets.
Also, when the number of students is more, it's almost impossible to analyse the data if it is not organised.
If we store it in alphabetical order, it is hard to determine who scored the least marks or who scored the highest marks.
So A is not always the best way to organise for easy analysis.

Question 59.

In the bar chart below, you have the sales of bikes from ABC company. What is the difference of sales in April and June?
Here the horizontal axis is x-axis which represents months and vertical axis is y-axis which represents number of bikes sold. The scale for x axis is 1 cm = 1 month and y-axis 1 cm = 5 bikes.

50 bikes
10 bikes
15 bikes
25 bikes

Discuss Question

Answer: Option A. -> 50 bikes
:
A

The height of the bar graph represents the sales in a month.
$∴$ Sales in April $= 35$ units.
Sales in June $= 25$ units.
So, the difference $= 35 - 25 = 10$ units.
$∴$ Difference in sales $= 10 \times 5 = 50$

Question 60.

Which of the following is/are the correct reason(s) for using pictographs?

They represent data through pictures
It is easy to draw pictographs for any kind of dataset
They look attractive and attract readers' attention
They help us to answer the question on the data easily

Discuss Question

Answer: Option A. -> They represent data through pictures
:
A, C, and D

A pictograph represents data through pictures of objects. It helps answer the questions on the data at a glance. They can be applied to any data set, but it can be difficult in some specific cases. Suppose if you have to represent sales of cars for a company in a year, it will be so difficult to represent data like 39837 or 30001, using pictures.