# Free Data Handling 01 Practice Test - 4th Grade

Representation of data as rectangular bars with different lengths is called:

A. Bar graph
B. Pictograph
C. Data
D. Scale

#### SOLUTION

Solution : A

A bar graph is a graph that presents data with rectangular bars with heights or lengths proportional to the values that they represent.

The initial data collected which is not organised is called:

A. Bar graph
B. Grouped data
C. Raw data
D. Graph

#### SOLUTION

Solution : C

Raw data is data collected from one or many sources. It is data that has not been organised. It needs to be organised so that it can be used.

The figure shows the preferred flavour of popcorn among 20 persons. How many people don’t have caramel as the favourite?

A. 18
B. 17
C. 15
D. 16

#### SOLUTION

Solution : B On observing the bar graph, we see that
Total number of people who took the survey = (3 + 4+ 7+ 6) = 20
Number of people who like caramel flavour = 3
Number of people who don't prefer caramel flavoured popcorn =203=17

Height of 12 boys (in cm) are :
143,144,141,145,147,144,142,145,149,151,147,143

What is the frequency of boys with a height of 143 cm?

A. 2
B. 3
C. 4
D. 1

#### SOLUTION

Solution : A

Arranging the heights of 12 boys in ascending order we get
141,142,143,143,144,144,145,145,147,147,149,151

The number of times a particular value of data occurs is known as frequency.
Here, we see there are 2 boys with height 143 cm.
Therefore, the frequency of boys with a height of 143 cm is 2.

What is the sum of black coloured and white coloured cars sold? A. 32
B. 37
C. 17
D. 33

#### SOLUTION

Solution : B

On observing the table we see,
Number of black cars sold = 20
Number of white cars sold = 17

∴ Total number of black and white cars sold = 20+17=37 cars

Find the frequency of  symbol ‘-’:
×, ×, ÷, -, ×, +, +, ÷, ×, +, -, +, +, -, ÷, ×

A. 1
B. 2
C. 3
D. 4

#### SOLUTION

Solution : C

The number of times a particular value of data occurs is known as frequency.
×, ×, ÷, -, ×, +, +, ÷, ×, +, -, +, +, -, ÷, ×
Here, we observed that symbol  '-' is occurring thrice, therefore the frequency of '-' symbol is 3.

If others include 3 orange cars, 4 green cars and 2 purple cars, what is the difference between the number of red cars sold and number of green cars sold? A. 10
B. 15
C. 11
D. 4

#### SOLUTION

Solution : C

On observing the data,
Given: Red cars = 15
Green cars = 4

Difference between red cars sold and green cars = 154=11 cars

The daily rainfall data recorded in a week is shown below. What is the total rainfall recorded on Thursday? (1 drop = 4 inches of rain) A. 46 inches
B. 42 inches
C. 44 inches
D. 34 inches

#### SOLUTION

Solution : C

Given:
1 drop = 4 inches of rain
Rainfall recorded on Thursday = 11 drops
Therefore, the number of inches of rain on Thursday = 4×11=44 inches

The daily rainfall data recorded in a week is shown below. On which day of the week is the rainfall the highest? (1 drop = 1 inch rainfall) A. Monday
B. Thursday
C. Sunday
D. Both Sunday and Monday

#### SOLUTION

Solution : B

By observing the graph, (1 drop = 1 inch)
Rainfall recorded on Monday = 10 inches
Rainfall recorded on Tuesday = 06 inches
Rainfall recorded on Wednesday = 08 inches
Rainfall recorded on Thursday = 11 inches
Rainfall recorded on Friday = 07 inches
Rainfall recorded on Saturday = 04 inches
Rainfall recorded on Sunday = 09 inches

From above , we can see that Thursday had the heaviest rainfall.

Number of columns in the table given below is ______.
ItemQuantityPen25Pencil30Eraser18Sharpner21

A. 5
B. 2
C. 10
D. 4

#### SOLUTION

Solution : B

Data written vertically are called columns. Here, there are two vertical datas present under the name Item and Quantity. Thus, there are two columns present in the given table.