The given data represents the most preferred drink of 60 guests at a party. Drink Number of guests Tea 20 Coffee 9 Milk 7 Juice 12 Cold drink 12 Find the mode of the data. What does it tell us?

Given table: Drink Number of guests Tea 20 Coffee 9 Milk 7 Juice 12 Cold drink 12 Let us draw a bar graph for the data given. We select a scale of 1 unit = 2 guests . As we know that, A bar graph is a pictorial representation of data. In bar graphs, the bars (rectangles) of equal width with uniform spacing between them are drawn. The lengths of bars depend upon the frequency and the scale chosen. As we know that, The mode of a sample of data is the observation that occurs most often, i.e., the mode is the observation which has the highest frequency in the given data. Hence, from graph, it tells us that tea which is liked by 20 guests is the most preferred drink of the guests the party. ∴ The mode of the data is Tea.

The given table shows marks obtained by Riya and Siya in their semester examination. Represent the given data on a double bar graph and answer these questions: English Hindi Mathematics Science Social science Riya 80 85 85 90 75 Siya 75 75 85 80 85 In which subjects was Riya better than Siya?

Given table: English Hindi Mathematics Science Social science Riya 80 85 85 90 75 Siya 75 75 85 80 85 As we know that, A double bar graph is used to compare two types (sets) of data simultaneously. It helps us to present more than one kind of information at the same time. Let us draw a double bar graph for the data given. We select a scale of 1 unit = 10 marks . Hence, from the above double bar graph, Clearly, In English, Hindi and Science subjects Riya scored more marks than Siya ∴ Riya scored better than Siya in English, Hindi and Science subjects

The given table shows marks obtained by Riya and Siya in their semester examination. Represent the given data on a double bar graph and answer these questions: English Hindi Mathematics Science Social science Riya 80 85 85 90 75 Siya 75 75 85 80 85 Find the average marks scored by both the girls and hence compare their performance.

Given table: English Hindi Mathematics Science Social science Riya 80 85 85 90 75 Siya 75 75 85 80 85 As we know that, A double bar graph is used to compare two types (sets) of data simultaneously. It helps us to present more than one kind of information at the same time. Let us draw a double bar graph for the data given. We select a scale of 1 unit = 10 marks . we know that, Average = Sum of observations No . of observations Average marks scored by Riya = 80 + 85 + 85 + 90 + 75 5 = 415 5 = 83 ∴ Average marks scored by Riya is 83 marks Average marks scored by Siya = 75 + 75 + 85 + 80 + 85 5 = 400 5 = 80 ∴ Average marks scored by Siya is 80 marks By comparing both of them, Riya performed better than Siya.

Alka Tuli and Rajesh Hassija Solutions for Chapter: Data Handling, Exercise 3: Exercise

Author:Alka Tuli & Rajesh Hassija

Alka Tuli Mathematics Solutions for Exercise - Alka Tuli and Rajesh Hassija Solutions for Chapter: Data Handling, Exercise 3: Exercise

Attempt the free practice questions on Chapter 16: Data Handling, Exercise 3: Exercise with hints and solutions to strengthen your understanding. Active Teach Maths Ace solutions are prepared by Experienced Embibe Experts.

Questions from Alka Tuli and Rajesh Hassija Solutions for Chapter: Data Handling, Exercise 3: Exercise with Hints & Solutions

HARD

7th CBSE

IMPORTANT

Active Teach Maths Ace>Chapter 16 - Data Handling>Exercise>Q 2

The given data represents the most preferred drink of $60$ guests at a party.

Drink	Number of guests
Tea	$\begin{array}{r} 20 \end{array}$
Coffee	$9$
Milk	$7$
Juice	$12$
Cold drink	$12$

Find the mode of the data. What does it tell us?

EASY

7th CBSE

IMPORTANT

Active Teach Maths Ace>Chapter 16 - Data Handling>Exercise>Q 3

The performance of Rahul in the quarterly and half-yearly examinations is shown using the double bar graph.

Has the performance gone down in any subject? (Write Yes/No)

Question Image

HARD

7th CBSE

IMPORTANT

Active Teach Maths Ace>Chapter 16 - Data Handling>Exercise>Q 4

The following data shows the sale of watches and sunglasses in a store during six months. Use a double graph for the given data to answer these questions.

	January	February	March	April	May	June
Watches	$500$	$450$	$750$	$250$	$350$	$100$
Sunglasses	$750$	$600$	$550$	$700$	$275$	$350$

In which month was the difference in the sales of watches and sunglasses the maximum?

HARD

7th CBSE

IMPORTANT

Active Teach Maths Ace>Chapter 16 - Data Handling>Exercise>Q 4

The following data shows the sale of watches and sunglasses in a store during six months. Use a double graph for the given data to answer these questions.

	January	February	March	April	May	June
Watches	$500$	$450$	$750$	$250$	$350$	$100$
Sunglasses	$750$	$600$	$550$	$700$	$275$	$350$

In which month was the ratio of sale of watches to sunglasses $3 ∶ 4$ ?

HARD

7th CBSE

IMPORTANT

Active Teach Maths Ace>Chapter 16 - Data Handling>Exercise>Q 5

The given table shows marks obtained by Riya and Siya in their semester examination. Represent the given data on a double bar graph and answer these questions:

	English	Hindi	Mathematics	Science	Social science
Riya	$80$	$85$	$85$	$90$	$75$
Siya	$75$	$75$	$85$	$80$	$85$

Who performed better in languages?

HARD

7th CBSE

IMPORTANT

Active Teach Maths Ace>Chapter 16 - Data Handling>Exercise>Q 5

The given table shows marks obtained by Riya and Siya in their semester examination. Represent the given data on a double bar graph and answer these questions:

	English	Hindi	Mathematics	Science	Social science
Riya	$80$	$85$	$85$	$90$	$75$
Siya	$75$	$75$	$85$	$80$	$85$

In which subject did Siya and Riya score equal marks?

HARD

7th CBSE

IMPORTANT

Active Teach Maths Ace>Chapter 16 - Data Handling>Exercise>Q 5

The given table shows marks obtained by Riya and Siya in their semester examination. Represent the given data on a double bar graph and answer these questions:

	English	Hindi	Mathematics	Science	Social science
Riya	$80$	$85$	$85$	$90$	$75$
Siya	$75$	$75$	$85$	$80$	$85$

In which subjects was Riya better than Siya?

HARD

7th CBSE

IMPORTANT

Active Teach Maths Ace>Chapter 16 - Data Handling>Exercise>Q 5

The given table shows marks obtained by Riya and Siya in their semester examination. Represent the given data on a double bar graph and answer these questions:

	English	Hindi	Mathematics	Science	Social science
Riya	$80$	$85$	$85$	$90$	$75$
Siya	$75$	$75$	$85$	$80$	$85$

Find the average marks scored by both the girls and hence compare their performance.

Alka Tuli and Rajesh Hassija Solutions for Chapter: Data Handling, Exercise 3: Exercise

Alka Tuli Mathematics Solutions for Exercise - Alka Tuli and Rajesh Hassija Solutions for Chapter: Data Handling, Exercise 3: Exercise

Questions from Alka Tuli and Rajesh Hassija Solutions for Chapter: Data Handling, Exercise 3: Exercise with Hints & Solutions

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