Home
Class 9
MATHS
Know the opinion of the students about ...

Know the opinion of the students about Mathematics, a survey of 200 students was conducted. The data is recorded in the following table: Opinion:                        Like                                      Dislike Number of Students:     135                                      65 Find the probability that a student chosen at random (i)               likes Mathematics     (ii)  does not like it.

Text Solution

Verified by Experts

Probability of students who like/dislike statistics = (Number of students who like/dislike statistics) / Total number of students
Total number of students `= 200`
Number of students who like statistics `= 135`
Number of students who dislike statistics `= 65`
(i) Probability of students who like statistics `= 135/200 = 27/40`
(ii) Probability of students who dislike statistics `= 65/200 = 13/40`
Promotional Banner

Topper's Solved these Questions

  • NUMBER SYSTEM

    RD SHARMA|Exercise All Questions|130 Videos

  • QUADRILATERALS

    RD SHARMA|Exercise All Questions|251 Videos

Similar Questions

Explore conceptually related problems

To know the opinion of the students about the subject statistics,a survey of 200 students was conducted.The data is recorded in the following table.

To know the opinion of the students about the subject statistics, a survey of 200 students was conducted. The data is recorded in the following table. Find the probability that a student chosen at random likes statistics

To know the opinion of the students about the subject statistics, a survey of 200 students was conducted. The data is recorded in the following table. Find the probability that a student chosen at random does not like it.

To know the opinion of the students about Mathematics,a survey of 200 students was conducted.The data is recorded in the following table: Opinion: Like Dislike No.of students 13565 Find the probability that a student chosen at random ( i) like Mathematics (ii) does not like it.

To know the opinion of the students about the subject Sanskrit , a survey of 200 students was obtained . The data is recorded as under . What is the probability that a student chosen at random does not like it ?

To know the opinion of the students about the subject statistics , a survey of 200 students was conducted . The data is recorded in the following table : {:("Opinion ","Number of students"),("Like",135),("Dislike",65):} Find the probability that a student chosen at random Does not like it.

To know the opinion of the students about the subject statistics , a survey of 200 students was conducted . The data is recorded in the following table : {:("Opinion ","Number of students"),("Like",135),("Dislike",65):} Find the probability that a student chosen at random Likes statistics

To know the opinion of 35 students about sixth subject as automobile engineering or financial management a survery was done . The data is recorded in the following table in favour of choosing automobile engineering . No of students like 20 Dislike 15 Find the probability that a student will opt. (i) automobile engineering (ii) Financial management

A survey shows that 69% students like mathematics, whereas 75% like chemistry. If x% students like both the subjects, then the maximum value of x is

RD SHARMA-PROBABILITY-All Questions
  1. An insurance company selected 2000 drivers at random (i.e., without an...

    Text Solution

    |

  2. A company selected 2400 families at random and survey them to determ...

    Text Solution

    |

  3. Know the opinion of the students about Mathematics, a survey of 200...

    Text Solution

    |

  4. opp side of ||gm are equal

    Text Solution

    |

  5. On one page of a telephone directory, there were 200 telephone numb...

    Text Solution

    |

  6. opp side of ||gm are ?

    Text Solution

    |

  7. Given below is the frequency distribution of wages (in Rs.) of 30 w...

    Text Solution

    |

  8. The distances (in km) of 40 female engineers from their residence t...

    Text Solution

    |

  9. A tyre manufacturing company kept a record of the distance covered ...

    Text Solution

    |

  10. Three coins are tossed simultaneously 100 times the following frequ...

    Text Solution

    |

  11. Fifty seeds were selected at random from each of 5 bags of seeds, an...

    Text Solution

    |

  12. A coin is tossed 500 times with the following frequencies of two out...

    Text Solution

    |

  13. Two coins are tossed simultaneous 1000 times with the following fre...

    Text Solution

    |

  14. Three coins are tossed simultaneously 200 times with the following ...

    Text Solution

    |

  15. In a cricket match, a batsman hits a boundary 8 times out of 40 bal...

    Text Solution

    |

  16. A die is thrown 1000 times with the following frequencies for the o...

    Text Solution

    |

  17. The record of a weather station shows that out of the past 250 cons...

    Text Solution

    |

  18. 1000 families with 2 children were selected randomly, and the follo...

    Text Solution

    |

  19. The percentage of marks obtained by a student in the monthly unit t...

    Text Solution

    |

  20. On one page of a telephone directory, there were 200 telephone numb...

    Text Solution

    |