**Data Handling**

**EXERCISE – 9.4**

**EX 9.4 QUESTION 1.**

**A survey of 120 school students was done to find which activity they prefer to do in their free time.**

Preferred activity |
Number of Students |

Playing |
45 |

Reading story books |
30 |

Watching T.V |
20 |

Listening to music |
10 |

Painting |
15 |

**Draw a bar graph to illustrate the above data taking scale of 1 unit length = 5 students. Which activity is preferred by most of the students other than playing?**

**Solution:**

**EX 9.4 QUESTION 2.**

** The number of Mathematics books sold by a shopkeeper on six consecutive days is shown below:**

Days |
Sunday |
Monday |
Tuesday |
Wednesday |
Thursday |
Friday |

Number of books sold |
65 |
40 |
30 |
50 |
20 |
70 |

**Draw a bar graph to represent the above information choosing the scale of your choice.**

**Solution:**

**EX 9.4 QUESTION 3.**

**Following table shows the number of bicycles manufactured in a factory during the years 1998 to 2002. Illustrate this data using a bar graph. Choose a scale of your choice**

Year |
Number of bicycles manufactured |

1998 |
800 |

1999 |
600 |

2000 |
900 |

2001 |
1100 |

2002 |
1200 |

**(a) In which year were the maximum number of bicycles manufactured?**

**(b) In which year were the minimum number of bicycles manufactured?**

**Solution:**

(a) In the year of 2002, the maximum number of bicycles were manufactured.

(b) In the year of 1999, the minimum number of bicycles were manufactured.