## RS Aggarwal Solutions Chapter 14 Statistics Ex 14B in PDF for Free Download

Contents

**Question 1.****The following table shows the number of students participating in various games in a school.****Draw a bar graph to represent the above data.****Solution:**

We shall take the game along x-axis and number of students along y-axis.

**Question 2.****On a certain day, the temperature in a city was recorded as under.****Solution:**

We shall take the time on x-axis and temperature (in °C) on y-axis.

**Question 3.****The approximate velocities of some vehicles are given below:****Draw a bar graph to represent the above data.****Solution:**

We shall take name of vehicle on x-axis and velocity (in km/hr) on y-axis

**Question 4.****The following table shows the favorite sports of 250 students of a school. Represent the data by a bar graph.****Solution:**

We shall take sports on x-axis and number of students on y-axis.

**Question 5.****Given below is a table which shows the year wise strength of a school. Represent this data by a bar graph****Solution:**

We shall take years on x-axis and number of students on y-axis.

**Question 6.****The following table shows the number of scooters produced by a company during six consecutive years. Draw a bar graph to represent this data.****Solution:**

We shall take years on x-axis and number of students on y-axis.

**Question 7.****The birth rate per thousand in five countries over a period of time is shown below :****Solution:**

We shall take years on x-axis and number of students on y-axis.

**Question 8.****The following table shows the interest paid by India (in thousand crore rupees) on external debts during the period 1998-99 to 2002-03.****Represent the data by a bar graph.****Solution:**

We shall take years on x-axis and number of students on y-axis.

**Question 9.****The air distances of four cities from Delhi (in km) are given below :****Draw a bar graph to represent the above data.****Solution:**

We shall take years on x-axis and number of students on y-axis.

**Question 10.****The following table shows the life expectancy (average age to which people live) in various countries in a particular year.Represent this data by a bar graph.****Solution:**

We shall take years on x-axis and number of students on y-axis.

**Question 11.****Gold prices on 4 consecutive Tuesdays were as under.****Draw a bar graph to show this information.****Solution:**

We shall take week on x-axis and Rate per 10g (in Rs.) on y-axis.

**Question 12.****Various modes of transport used by 1850 students of a school are given below :****Draw a bar graph to represent the above data.****Solution:**

We shall take mode of transport on x-axis and number of students on y-axis.

**Question 13.****Look at the bar graph given below.****Read it carefully and answer the following questions.****(i) What information does the bar graph give ?****(ii) In which subject is the student very good ?****(iii) In which subject is he poor ?****(iv) What is the average of his marks ?****Solution:**

We see from the graph that

(i) It shows the marks obtained by a student in various subjects.

(ii) The student is very well in mathematics.

(iii) The student is very’ poor, in Hindi.

(iv) Average marks

= (Here x = 5)

=

= 56 marks

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