Draw a histogram for the following data: Height ( in cm ) 120 - 124 124 - 128 128 - 132 132 - 136 136 - 140 140 - 144 Number of students 80 73 90 93 75 60

The given data is, Height ( in cm ) 120 - 124 124 - 128 128 - 132 132 - 136 136 - 140 140 - 144 Number of students 80 73 90 93 75 60 In the histogram, we represent the groups of observations (i.e., class intervals) on the horizontal axis and the height of the bars shows the frequency of the class interval. Also, there is no gap between the bars as there is no gap between the class intervals. Take the scale as along the horizontal axis, 1 unit = 4 cm and along the vertical axis, 1 unit = 10 students. The jagged line or the broken line is shown along the horizontal axis to show the gap between 0 to 120 .

Draw a double bar graph for the following information taken from the report card of Sonalika. Subject English Hindi Maths Science Social Science Marks in Term I 84 72 88 96 79 Marks in term II 80 73 90 93 75

We know that, Comparison of two term marks (term I and term II) is to be represented, therefore double bar graph is drawn by taking the subjects along x - axis and secured marks along y - axis , using scale of 1 cm = 10 marks. Therefore, the required graph is,

The following table shows the percentage of total population of a state in different age groups. Study the table and draw the histogram to represent this information. Then, answer the following question. Age group in years Percentage Up to 15 30 15 - 25 17 25 - 35 18 35 - 45 14 45 - 55 14 55 - 65 5 65 and above 2 Total 100 Which age group accounts for maximum population in a state?

In the histogram, we represent the groups of observations (i.e., class intervals) on the horizontal axis and the height of the bars shows the frequency of the class interval. Also, there is no gap between the bars as there is no gap between the class intervals. Take the scale as along the horizontal axis and along the vertical axis 1 unit = 2 Percentage. Hence, 0 to 15 years age group accounts for maximum population in a state.

The following table shows the percentage of total population of a state in different age groups. Study the table and draw the histogram to represent this information. Then, answer the following question. Age group in years Percentage Up to 15 30 15 - 25 17 25 - 35 18 35 - 45 14 45 - 55 14 55 - 65 5 65 and above 2 Total 100 Which age group accounts for minimum population in a state?

In the histogram, we represent the groups of observations (i.e., class intervals) on the horizontal axis i.e age group and the height of the bars shows the frequency of the class interval i.e percentage. Also, there is no gap between the bars as there is no gap between the class intervals. Take the scale as along the horizontal axis and along the vertical axis 1 unit = 2 Percentage. Hence, 65 years and above age group accounts for minimum population in state.

The following table shows the percentage of total population of a state in different age groups. Study the table and draw the histogram to represent this information. Then, answer the following question. Age group in years Percentage Up to 15 30 15 - 25 17 25 - 35 18 35 - 45 14 45 - 55 14 55 - 65 5 65 and above 2 Total 100 If there are 28000 people in age group 35 - 45 , then find total population of the state.

In the histogram, we represent the groups of observations (i.e., class intervals) on the horizontal axis i.e age group and the height of the bars shows the frequency of the class interval i.e percentage. Also, there is no gap between the bars as there is no gap between the class intervals. Take the scale as along the horizontal axis and along the vertical axis 1 unit = 2 Percentage. If there are 28000 people in age group 35 - 45 , then the population of other age groups is given in the below table. Age group in years Percentage Population Up to 15 30 60000 15 - 25 17 34000 25 - 35 18 36000 35 - 45 14 28000 45 - 55 14 28000 55 - 65 5 10000 65 and above 2 4000 Total 100 200000 Hence, the total population of the state is 200000 .

Rupesh Pathak and Vaishali Bhatia Solutions for Chapter: Data Handling and Probability, Exercise 9: Worksheet

Author:Rupesh Pathak & Vaishali Bhatia

Rupesh Pathak Mathematics Solutions for Exercise - Rupesh Pathak and Vaishali Bhatia Solutions for Chapter: Data Handling and Probability, Exercise 9: Worksheet

Attempt the practice questions on Chapter 15: Data Handling and Probability, Exercise 9: Worksheet with hints and solutions to strengthen your understanding. 'I Did It' Mathematics solutions are prepared by Experienced Embibe Experts.

Questions from Rupesh Pathak and Vaishali Bhatia Solutions for Chapter: Data Handling and Probability, Exercise 9: Worksheet with Hints & Solutions

MEDIUM

8th CBSE

IMPORTANT

'I Did It' Mathematics>Chapter 15 - Data Handling and Probability>Worksheet>Q 3

Draw a histogram for the following data:

Height ( in $cm$ )	$120 - 124$	$124 - 128$	$128 - 132$	$132 - 136$	$136 - 140$	$140 - 144$
Number of students	$80$	$73$	$90$	$93$	$75$	$60$

MEDIUM

8th CBSE

IMPORTANT

'I Did It' Mathematics>Chapter 15 - Data Handling and Probability>Worksheet>Q 4

Draw a double bar graph for the following information taken from the report card of Sonalika.

Subject	English	Hindi	Maths	Science	Social Science
Marks in Term I	$84$	$72$	$88$	$96$	$79$
Marks in term II	$80$	$73$	90	$93$	$75$

MEDIUM

8th CBSE

IMPORTANT

'I Did It' Mathematics>Chapter 15 - Data Handling and Probability>Worksheet>Q 6

From a well-shuffled pack of $52$ playing cards, a card is drawn out. What is the probability of getting a red queen? (Write the answer in its simplest form)

MEDIUM

8th CBSE

IMPORTANT

'I Did It' Mathematics>Chapter 15 - Data Handling and Probability>Worksheet>Q 6

From a well-shuffled pack of $52$ playing cards, a card is drawn out. What is the probability of getting a red queen?

MEDIUM

8th CBSE

IMPORTANT

'I Did It' Mathematics>Chapter 15 - Data Handling and Probability>Worksheet>Q 6

A card is drawn out from a pack of $52$ playing cards. Find the probability of getting a black ace. (Write the answer in its simplest form)

MEDIUM

8th CBSE

IMPORTANT

'I Did It' Mathematics>Chapter 15 - Data Handling and Probability>Worksheet>Q 7

The following table shows the percentage of total population of a state in different age groups. Study the table and draw the histogram to represent this information. Then, answer the following question.

Age group in years	Percentage
Up to $15$	$30$
$15 - 25$	$17$
$25 - 35$	$18$
$35 - 45$	$14$
$45 - 55$	$14$
$55 - 65$	$5$
$65$ and above	$2$
Total	$100$

Which age group accounts for maximum population in a state?

MEDIUM

8th CBSE

IMPORTANT

'I Did It' Mathematics>Chapter 15 - Data Handling and Probability>Worksheet>Q 7

Age group in years	Percentage
Up to $15$	$30$
$15 - 25$	$17$
$25 - 35$	$18$
$35 - 45$	$14$
$45 - 55$	$14$
$55 - 65$	$5$
$65$ and above	$2$
Total	$100$

Which age group accounts for minimum population in a state?

MEDIUM

8th CBSE

IMPORTANT

'I Did It' Mathematics>Chapter 15 - Data Handling and Probability>Worksheet>Q 7

Age group in years	Percentage
Up to $15$	$30$
$15 - 25$	$17$
$25 - 35$	$18$
$35 - 45$	$14$
$45 - 55$	$14$
$55 - 65$	$5$
$65$ and above	$2$
Total	$100$

If there are $28000$ people in age group $35 - 45$ , then find total population of the state.

Rupesh Pathak and Vaishali Bhatia Solutions for Chapter: Data Handling and Probability, Exercise 9: Worksheet

Rupesh Pathak Mathematics Solutions for Exercise - Rupesh Pathak and Vaishali Bhatia Solutions for Chapter: Data Handling and Probability, Exercise 9: Worksheet

Questions from Rupesh Pathak and Vaishali Bhatia Solutions for Chapter: Data Handling and Probability, Exercise 9: Worksheet with Hints & Solutions

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