Draw a histogram to represent the following frequency distribution. Class intervals 10 - 15 15 - 20 20 - 25 25 - 30 30 - 35 35 - 40 Frequency 6 10 10 8 18 12

Given, Class intervals 10 - 15 15 - 20 20 - 25 25 - 30 30 - 35 35 - 40 Frequency 6 10 10 8 18 12 Procedure to draw histogram: (i) On a graph paper, take two perpendicular lines, one horizontal and the other vertical, intersecting at O. Mark them as OX and OY . (ii) The horizontal line OX is the x - axis and vertical line OY is the y - axis. (iii) Represent class limits along the x - axis with a suitable scale. (iv) Represent frequencies along the y - axis with a suitable scale. (v) Construct rectangles with class intervals as base and respective frequencies as heights. (vi) Select a scale depending upon the data as convenience. The scale for the x - axis should not be equal to the scale of the y - axis. Lets take scale as follows: Represent the Age in x - axis, 1 big square = 5 units Represent the number of persons in y - axis, 1 big square = 2 units Hence, the required answer is shown above.

Draw a histogram for the following data. Cost of living index 440 - 460 460 - 480 480 - 500 500 - 520 520 - 540 540 - 560 560 - 580 580 - 600 Total Number of months 2 4 3 5 3 2 1 4 24

Given, Cost of living index 440 - 460 460 - 480 480 - 500 500 - 520 520 - 540 540 - 560 560 - 580 580 - 600 Total Number of months 2 4 3 5 3 2 1 4 24 Procedure to draw histogram: (i) On a graph paper, take two perpendicular lines, one horizontal and the other vertical, intersecting at O. Mark them as OX and OY . (ii) The horizontal line OX is the x - axis and vertical line OY is the y - axis. (iii) Represent class limits along the x - axis with a suitable scale. (iv) Represent frequencies along the y - axis with a suitable scale. (v) Construct rectangles with class intervals as base and respective frequencies as heights. (vi) Select a scale depending upon the data as convenience. The scale for the x - axis should not be equal to the scale of the y - axis. Lets take scale as follows: Represent the Age in x - axis, 1 big square = 20 units Represent the number of persons in y - axis, 1 big square = 1 units Hence, the required answer is shown above.

The following table gives the distribution of intelligence quotient (IQ) of 60 pupils of class VIII in a school. IQ 60 - 70 70 - 80 80 - 90 90 - 100 100 - 110 110 - 120 120 - 130 Number of pupils 2 3 5 16 14 13 7 Draw a histogram for the above data.

Given, The following table gives the distribution of intelligence quotient (IQ) of 60 pupils of class VIII in a school. IQ 60 - 70 70 - 80 80 - 90 90 - 100 100 - 110 110 - 120 120 - 130 Number of pupils 2 3 5 16 14 13 7 Procedure to draw histogram: (i) On a graph paper, take two perpendicular lines, one horizontal and the other vertical, intersecting at O. Mark them as OX and OY . (ii) The horizontal line OX is the x - axis and vertical line OY is the y - axis. (iii) Represent class limits along the x - axis with a suitable scale. (iv) Represent frequencies along the y - axis with a suitable scale. (v) Construct rectangles with class intervals as base and respective frequencies as heights. (vi) Select a scale depending upon the data as convenience. The scale for the x - axis should not be equal to the scale of the y - axis. Lets take scale as follows: Represent the Age in x - axis, 1 big square = 10 units Represent the number of persons in y - axis, 1 big square = 2 units Hence, the required answer is shown above.

The given histogram depicts the marks obtained by 45 students of a class: What is the interval of highest marks and how many students are there in this interval?

Given, The given histogram depicts the marks obtained by 45 students of a class: From the histogram let's create a frequency table: Marks 0 - 10 10 - 20 20 - 30 30 - 40 40 - 50 50 - 60 60 - 70 70 - 80 Number of students 3 6 10 3 8 4 7 5 Observing the frequency table, the interval of highest marks are 70 - 80 and 5 students obtained this marks. Thus, required answer is shown above.

E M B I B E

Maths Hub (ICSE)>Chapter 17 - Data Handling>CHECK POINT

S Purkayastha Solutions for Chapter: Data Handling, Exercise 3: CHECK POINT

Author:S Purkayastha

S Purkayastha Mathematics Solutions for Exercise - S Purkayastha Solutions for Chapter: Data Handling, Exercise 3: CHECK POINT

Attempt the free practice questions on Chapter 17: Data Handling, Exercise 3: CHECK POINT with hints and solutions to strengthen your understanding. Maths Hub (ICSE) solutions are prepared by Experienced Embibe Experts.

Questions from S Purkayastha Solutions for Chapter: Data Handling, Exercise 3: CHECK POINT with Hints & Solutions

MEDIUM

8th ICSE

IMPORTANT

Maths Hub (ICSE)>Chapter 17 - Data Handling>CHECK POINT>Q 3

Draw a histogram to represent the following frequency distribution.

Class intervals	$10 - 15$	$15 - 20$	$20 - 25$	$25 - 30$	$30 - 35$	$35 - 40$
Frequency	$6$	$10$	$10$	$8$	$18$	$12$

MEDIUM

8th ICSE

IMPORTANT

Maths Hub (ICSE)>Chapter 17 - Data Handling>CHECK POINT>Q 4

Draw a histogram for the following data.

Cost of living index	$440 - 460$	$460 - 480$	$480 - 500$	$500 - 520$	$520 - 540$	$540 - 560$	$560 - 580$	$580 - 600$	Total
Number of months	$2$	$4$	$3$	$5$	$3$	$2$	$1$	$4$	$24$