The following table shows the daily sale of electric T.V in a factory for 7 days of a week. Days Monday Tuesday Wednesday Thursday Friday Saturday Sunday Number of electric TV 300 400 150 250 100 350 200 Represent the above information by a pictograph

Let an icon of a electric T.V represent 50 electric T.V Then, the number of icons produced by the industry on different days of a week are as follows: Day Number of icons Mon 300 ÷ 50 = 6 Tue 400 ÷ 50 = 8 Wed 150 ÷ 50 = 3 Thurs 250 ÷ 50 = 5 Fri 100 ÷ 50 = 2 Sat 350 ÷ 50 = 7 Sun 200 ÷ 50 = 4 The pictograph representing the above data is as follows: Day Number of icons Mon Tue Wed Thurs Fri Sat Sun Hence, the above obtained figure is the pictograph of given data.

The population of Delhi state in different census years is given below Census year 1961 1971 1981 1991 2001 Population in lakhs 30 55 70 110 150 Represent the above information with the help of a bar graph

To represent the given data on a bar graph, we should first draw a horizontal and a vertical line. Here, the horizontal line will show the census year and the vertical line will show represent the population. since 5 values or data are given, we will mark 5 points on the horizontal axis at equal distances, and will erect rectangles of the same width with their heights proportional to the given data. Also, on the vertical axis each difference of 10 will represent a population of 10 lakhs.

The annual expending of an establishment in the year 2009 - 2010 is given below Draw the bar chart Account head Expenditure (in thousands of rupees) Pay and allowance 630 Increase in DA 270 Life insurance premium 85 Provident fund 65 Contingent expenses 22

On y-axis 1 unit = 80 (in thousand Ruppes)

Draw a bar graph to represent the following data regarding the life expectancy of animals Name of the animal Life (in years) Mouse 4 Dog 10 Horse 15 Goat 20 Cow 20 Elephant 28 Camel 60

A bar graph or bar chart is a graphical representation of data using bars of different heights. A bar graph or bar chart presents categorical data with rectangular bars with heights or length proportional to the values that they represent. The bars can be plotted vertically or horizontally. The bar graph for the given data is shown above. Here, the type of animal is taken in the x-axis while their respective ages is taken in y-axis. Observing the data carefully we get to know that maximum age is of camel.

The following table shows the budget of 2 families. Represent this information by means of a bar chart Item Family A in ₹ Family B in ₹ Food 480 360 Clothing 240 320 Rent 180 150 Education 60 40 Miscellaneous 240 330 1200 1200 Comment on the expenditure for (i) food and (ii) clothing

The following double-bar graph represents the expenditure of Family A and Family B (i) The expenditure on food by Family A is more than Family B (ii) The expenditure on clothing by Family A is less than Family B

E M B I B E

New Global Mathematics - 7>Chapter 22 - Statistics>EXERCISE 22.1

Dr Pooranmal and Ashfaq A Khan Solutions for Chapter: Statistics, Exercise 1: EXERCISE 22.1

Author:Dr Pooranmal & Ashfaq A Khan

Dr Pooranmal Mathematics Solutions for Exercise - Dr Pooranmal and Ashfaq A Khan Solutions for Chapter: Statistics, Exercise 1: EXERCISE 22.1

Attempt the practice questions on Chapter 22: Statistics, Exercise 1: EXERCISE 22.1 with hints and solutions to strengthen your understanding. New Global Mathematics - 7 solutions are prepared by Experienced Embibe Experts.

Questions from Dr Pooranmal and Ashfaq A Khan Solutions for Chapter: Statistics, Exercise 1: EXERCISE 22.1 with Hints & Solutions

MEDIUM

7th CBSE

IMPORTANT

New Global Mathematics - 7>Chapter 22 - Statistics>EXERCISE 22.1>Q 1

The following table shows the daily sale of electric T.V in a factory for $7$ days of a week.

Days	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Number of electric TV	$300$	$400$	$150$	$250$	$100$	$350$	$200$

Represent the above information by a pictograph

MEDIUM

7th CBSE

IMPORTANT

New Global Mathematics - 7>Chapter 22 - Statistics>EXERCISE 22.1>Q 2

The population of Delhi state in different census years is given below

Census year	$1961$	$1971$	$1981$	$1991$	$2001$
Population in lakhs	$30$	$55$	$70$	$110$	$150$

Represent the above information with the help of a bar graph

MEDIUM

7th CBSE

IMPORTANT

New Global Mathematics - 7>Chapter 22 - Statistics>EXERCISE 22.1>Q 3

The annual expending of an establishment in the year $2009 - 2010$ is given below

Draw the bar chart

Account head	Expenditure (in thousands of rupees)
Pay and allowance	$630$
Increase in DA	$270$
Life insurance premium	$85$
Provident fund	$65$
Contingent expenses	$22$