Home
Class 9
MATHS
Thirty children were asked about the num...

Thirty children were asked about the number of hours they watched TV programmes in the previous week. The results were found as follows: 1 6 2 3 5 12 5 8 4 8 10 3 4 12 2 8 15 1 17 6 3 2 8 5 9 6 8 7 14 12 (i) Make a grouped frequency distribution t

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • SURFACE AREA AND VOLUME OF A SPHERE

    RD SHARMA|Exercise All Questions|140 Videos

  • TRIANGLE AND ITS ANGLES

    RD SHARMA|Exercise All Questions|95 Videos

Similar Questions

Explore conceptually related problems

Thirty children were asked about the number of hours they watched TV programmes in the previous week. The results were found as follows: 1 ,6, 2, 3, 5, 12, 5, 8, 4, 8, 10, 3, 4, 12, 2, 8, 15, 1, 17, 6 3, 2, 8, 5, 9, 6, 8, 7, 14, 12 How many children watched television for 15 or more hours a week?

The distance (in km) of 40 engineers from their residence to their place of work were found as follows: 5 3 10 20 25 11 13 7 12 31 19 10 12 17 18 11 32 17 16 2 7 9 7 8 3 5 12 15 18 3 12 14 2 9 6 15 15 7 6 12 Construct a grouped frequency distribution table with class size 5 for the data given above taking the first interval as 0-5 (5 not included). What main features do you observe from this tabular representation?

The distance (in km) of 40 engineers from their residence to their place of work were found as follows: 5 3 10 20 25 11 13 7 12 31 19 10 12 17 18 11 32 17 16 2 7 9 7 8 3 5 12 15 18 3 12 14 2 9 6 15 15 7 6 12 Construct a grouped frequency dist

What should come next in the following series? 9 8 7 6 5 4 3 2 1 9 8 7 6 5 4 3 2 9 8 7 6 5 4 3 9 8 7 6 5 4 9 8 7 ?

The distance (in km) of 40 engineers from their residence to their place of work were found as follows: 5 3 10 20 25 11 13 7 12 31 19 10 12 17 18 11 32 17 16 2 7 9 7 8 3 5 12 15 18 3 12 14 2 9 6 15 15 7 6 12 What is the empirical probability that an engineer lives: within 1/2 km from her place of work?

Obtain the median for the following frequency distribution: x : 1 2 3 4 5 6 7 8 9 f : 8 10 11 16 20 25 15 9 6

Which pair of numbers has least and maximum frequency in the given sequence ? "9 3 5 7 2 6 3 8 9 4 3 5 3 6 4 5 3 7 4 2 8 3 7 6 5 7 2 3 8 6 "

In the following number series how many such 8s are there which are immediately preceded by a pair or number whose product is more than the product of pair of of numbers immediately following 8 ? "5 3 8 2 4 5 8 3 1 9 7 4 9 6 8 5 7 8 6 5 8 4 7 5 2 8 8 3 3 5 4 2 8 6 5 3 7 8 5 9 8 7"

The range of the data– 9, 8, 4, 3, 2, 1, 6, 4, 8, 10, 12, 15, 4, 3 is

RD SHARMA-TABULAR REPRESENTATION OF STATISTICAL DATA -All Questions
  1. The blood groups of 30 students of Class VIII are recorded as follo...

    Text Solution

    |

  2. Three coins were tossed 30 times simultaneously. Each time the numb...

    Text Solution

    |

  3. Thirty children were asked about the number of hours they watched T...

    Text Solution

    |

  4. The distances (in Km) covered by 24 cars in 2 hours are given below...

    Text Solution

    |

  5. The marks obtained by 35 students in an examination are given below...

    Text Solution

    |

  6. A cumulative frequency distribution is given below. Convert this in...

    Text Solution

    |

  7. Find the unknown entries a,b,c,d,e and f in the following distribution...

    Text Solution

    |

  8. Cumulative Frequency Distribution

    Text Solution

    |

  9. The marks scored by 55 students in a test are given below: Marks   ...

    Text Solution

    |

  10. The water bills (in rupees) of 32 houses in a certain street for th...

    Text Solution

    |

  11. Given below is a cumulative frequency distribution table showing th...

    Text Solution

    |

  12. Tally marks are used to find class intervals                 (b)...

    Text Solution

    |

  13. The difference between the highest and lowest values of the observa...

    Text Solution

    |

  14. The difference between the upper and the lower class limits is call...

    Text Solution

    |

  15. In the class intervals 10-20, 20-30, 20 is taken in the interval...

    Text Solution

    |

  16. In a frequency distribution, the mid-value of a class is 15 and the...

    Text Solution

    |

  17. The mid-value of a class interval is 42. If the class size is 10, t...

    Text Solution

    |

  18. The number of times a particular item occurs in a given data is cal...

    Text Solution

    |

  19. The width of each of nine classes in a frequency distribution is 2....

    Text Solution

    |

  20. Let l be the lower class limit of a class-interval in a frequency d...

    Text Solution

    |