A restaurant in Mumbai had 56 customers on Saturday evening. They spent the following amount in rupees: 560 315 45 462 316 218 316 325 210 282 45 273 280 85 280 318 180 310 45 320 120 316 150 260 510 245 150 155 430 250 40 510 216 120 210 85 250 320 525 218 150 250 380 382 136 125 450 435 325 45 490 234 110 45 96 250 Use classes (in ₹ ) of 0 - 100 , 100 - 200 , 200 - 300 , 300 - 400 , 400 - 500 and 500 - 600 to make a frequency table.

We know that, Frequency refers to the number of times an event or a value occurs. A frequency table is a table that lists items and shows the number of times the items occur. As the given data the frequency distribution table is presented below:- Classes Tally marks Frequency 0 - 100 | | | | | | | | 9 100 - 200 | | | | | | | | 10 200 - 300 | | | | | | | | | | | | | 16 300 - 400 | | | | | | | | | | 12 400 - 500 | | | | 5 500 - 600 | | | | 4

A restaurant in Mumbai had 56 customers on Saturday evening. They spent the following amount in rupees: 560 315 45 462 316 218 316 325 210 282 45 273 280 85 280 318 180 310 45 320 120 316 150 260 510 245 150 155 430 250 40 510 216 120 210 85 250 320 525 218 150 250 380 382 136 125 450 435 325 45 490 234 110 45 96 250 Prepare a histogram of the data from the frequency table you have prepared.

We know that frequency refers to the number of times an event or a value occurs. A frequency table is a table that lists items and shows the number of times the items occur. As per the given data the frequency distribution table is presented below:- Classes Tally marks Frequency 0 - 100 | | | | | | | | 9 100 - 200 | | | | | | | | 10 200 - 300 | | | | | | | | | | | | | 16 300 - 400 | | | | | | | | | | 12 400 - 500 | | | | 5 500 - 600 | | | | 4 And we know that a histogram is a pictorial representation of grouped frequency distribution. In a histogram we draw bars of uniform width adjacent to each other.

The following table shows the frequency distribution of marks of 400 students in an examination: Class 0 - 10 10 - 20 20 - 30 30 - 40 40 - 50 50 - 60 60 - 70 70 - 80 80 - 90 90 - 100 Number of students 4 15 30 61 85 88 52 37 19 9 Draw a histogram depicting the above data.

We know that a histogram is a pictorial representation of grouped frequency distribution. In a histogram we draw bars of uniform width adjacent to each other.

HARD

8th CBSE

IMPORTANT

Earn 100

The heights of $5$ students in a class are indicated as below:

Name of students Shyam Mohindra Joy Viraj George

Height (in cm) $148$ $130$ $140$ $160$ $142$

Represent their heights by bar graph and pie chart.

Important Questions on Data Handling

EASY

8th CBSE

IMPORTANT

Joy Of Mathematics 8>Chapter 22 - Data Handling>Revision Time>Q 2

The histogram given alongside shows the time taken by $50$ six-year-old children to eat their lunch at school.

Question Image

What is the class size?

EASY

8th CBSE

IMPORTANT

Joy Of Mathematics 8>Chapter 22 - Data Handling>Revision Time>Q 2

The histogram given alongside shows the time taken by $50$ six-year-old children to eat their lunch at school.

Question Image

How many children finished their lunch in less than $5$ minutes?

EASY

8th CBSE

IMPORTANT

Joy Of Mathematics 8>Chapter 22 - Data Handling>Revision Time>Q 2

The histogram given alongside shows the time taken by $50$ six-year-old children to eat their lunch at school.

Question Image

How many children needed more than $25$ minutes to finish their lunch?

EASY

8th CBSE

IMPORTANT

Joy Of Mathematics 8>Chapter 22 - Data Handling>Revision Time>Q 2

The histogram given alongside shows the time taken by $50$ six-year-old children to eat their lunch at school.

Question Image

How many children needed more than $20$ minutes to finish their lunch?

EASY

8th CBSE

IMPORTANT

Joy Of Mathematics 8>Chapter 22 - Data Handling>Revision Time>Q 2

The histogram given alongside shows the time taken by $50$ six-year-old children to eat their lunch at school.

Question Image

How many children needed more than $15$ but less than $30$ minutes to finish their lunch?

MEDIUM

8th CBSE

IMPORTANT

Joy Of Mathematics 8>Chapter 22 - Data Handling>Revision Time>Q 3

A restaurant in Mumbai had $56$ customers on Saturday evening. They spent the following amount in rupees:

$560$	$315$	$45$	$462$	$316$	$218$	$316$	$325$	$210$	$282$	$45$	$273$	$280$	$85$	$280$
$318$	$180$	$310$	$45$	$320$	$120$	$316$	$150$	$260$	$510$	$245$	$150$	$155$	$430$	$250$
$40$	$510$	$216$	$120$	$210$	$85$	$250$	$320$	$525$	$218$	$150$	$250$	$380$	$382$	$136$
$125$	$450$	$435$	$325$	$45$	$490$	$234$	$110$	$45$	$96$	$250$

Use classes (in $₹$ ) of $0 - 100, 100 - 200, 200 - 300, 300 - 400, 400 - 500$ and $500 - 600$ to make a frequency table.

MEDIUM

8th CBSE

IMPORTANT

Joy Of Mathematics 8>Chapter 22 - Data Handling>Revision Time>Q 3

A restaurant in Mumbai had $56$ customers on Saturday evening. They spent the following amount in rupees:

$560$	$315$	$45$	$462$	$316$	$218$	$316$	$325$	$210$	$282$	$45$	$273$	$280$	$85$	$280$
$318$	$180$	$310$	$45$	$320$	$120$	$316$	$150$	$260$	$510$	$245$	$150$	$155$	$430$	$250$
$40$	$510$	$216$	$120$	$210$	$85$	$250$	$320$	$525$	$218$	$150$	$250$	$380$	$382$	$136$
$125$	$450$	$435$	$325$	$45$	$490$	$234$	$110$	$45$	$96$	$250$

Prepare a histogram of the data from the frequency table you have prepared.

MEDIUM

8th CBSE

IMPORTANT

Joy Of Mathematics 8>Chapter 22 - Data Handling>Revision Time>Q 4

The following table shows the frequency distribution of marks of $400$ students in an examination:

Class	$0 - 10$	$10 - 20$	$20 - 30$	$30 - 40$	$40 - 50$	$50 - 60$	$60 - 70$	$70 - 80$	$80 - 90$	$90 - 100$
Number of students	$4$	$15$	$30$	$61$	$85$	$88$	$52$	$37$	$19$	$9$

Draw a histogram depicting the above data.

Name of students	Shyam	Mohindra	Joy	Viraj	George
Height (in cm)	$148$	$130$	$140$	$160$	$142$

The heights of 5 students in a class are indicated as below: Name of students Shyam Mohindra Joy Viraj George Height (in cm) 148 130 140 160 142 Represent their heights by bar graph and pie chart.

Important Questions on Data Handling

Learn and Prepare for any exam you want !

The heights of $5$ students in a class are indicated as below:

Name of students Shyam Mohindra Joy Viraj George

Height (in cm) $148$ $130$ $140$ $160$ $142$

Represent their heights by bar graph and pie chart.