Home
Class 9
MATHS
Two sections of class IX having 27 stude...

Two sections of class IX having 27 students in each section appeared for Mathematics olympiad. The marks obtained by them are shown below.
46, 31, 74, 68, 42, 54, 14, 61, 48, 37, 26, 8, 64, 57,
93, 72, 53, 59, 38, 16, 88, 56, 46, 66, 45, 61, 54,
27, 27, 44, 63, 58, 43, 81, 64, 36, 49, 50, 76, 38,
47, 77, 62, 53, 40, 71, 60, 45, 42, 34, 46, 40, 59, 42
One student is selected at random. Find the probability that selected student is
having marks between 39 and 99.

A

`6//9`

B

`7//9`

C

`1//2`

D

`1//2`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • PROBABILITY

    MTG IIT JEE FOUNDATION|Exercise EXERCISE (MATCH THE FOLLOWING)|1 Videos
  • PROBABILITY

    MTG IIT JEE FOUNDATION|Exercise EXERCISE (ASSERTION AND REASON TYPE)|5 Videos
  • PROBABILITY

    MTG IIT JEE FOUNDATION|Exercise NCERT SECTION (EXERCISE 15.1)|20 Videos
  • POLYNOMIALS

    MTG IIT JEE FOUNDATION|Exercise Olympiad/HOTS Corner|20 Videos
  • QUADRILATERALS

    MTG IIT JEE FOUNDATION|Exercise Olympiad/HOTS CORNER|15 Videos

Similar Questions

Explore conceptually related problems

Two sections of class IX having 27 students in each section appeared for Mathematics olympiad. The marks obtained by them are shown below. 46, 31, 74, 68, 42, 54, 14, 61, 48, 37, 26, 8, 64, 57, 93, 72, 53, 59, 38, 16, 88, 56, 46, 66, 45, 61, 54, 27, 27, 44, 63, 58, 43, 81, 64, 36, 49, 50, 76, 38, 47, 77, 62, 53, 40, 71, 60, 45, 42, 34, 46, 40, 59, 42 One student is selected at random. Find the probability that selected student is having marks more than 49.

61, 72, ?, 73, 59, 74, 58

The marks obtained by 12 students of a class in a test are 36, 27, 5, 19, 34, 23, 37, 23, 16, 23, 20, 38. Find mode.

Find the median of the following distribution: 40, 49, 17, 68, 44, 62, 48, 47, 21, 55, 32, 50, 12, 27, 30, 18

Prepare a frequency table of the following scores obtained by 50 students in a test: 42, 51, 21, 42, 37, 37, 42, 49, 38, 52 7, 33, 17, 44, 39, 7, 14, 27, 39, 42 42, 62, 37, 39, 67, 51, 53, 53, 59, 41 29, 38, 27, 31, 54, 19, 53, 51, 22, 61 42, 39, 59, 47, 33, 34, 16, 37, 57, 43

|[29, 26, 22], [25, 31, 27], [63, 54, 46]|

Find the mean deviation about the median for the data given below. 45, 36, 50, 60, 53, 46, 51, 48, 72, 42.

MTG IIT JEE FOUNDATION-PROBABILITY-EXERCISE (MULTIPLE CHOICE QUESTIONS)
  1. A group of 80 students of Class IX are selected and asked for their ch...

    Text Solution

    |

  2. A and Bare the only two outcomes of an event. If P(A) = 0.72, then wha...

    Text Solution

    |

  3. A coin is tossed for a certain number of times. If the probability of ...

    Text Solution

    |

  4. An English book contains 130 pages. A page is selected at random. What...

    Text Solution

    |

  5. If three dice are thrown simultaneously, then the probability of getti...

    Text Solution

    |

  6. The probabilities of the following frequencies of an experiment is giv...

    Text Solution

    |

  7. If 10/100, 13/100 , 15/100, 18/100, x/100, 30/100are the probabilitie...

    Text Solution

    |

  8. Two coins are tossed, then find the values of x, y and z in the follow...

    Text Solution

    |

  9. Cards marked with the numbers 2 to 101 are placed in a box and mixed t...

    Text Solution

    |

  10. In a school, 100 students took part in Van Mahotsava and helped each o...

    Text Solution

    |

  11. In a kitchen, there are 108 utensils, consisting of bowls, plates and ...

    Text Solution

    |

  12. If the probability of winning a race of an athlete is 1/6 less than th...

    Text Solution

    |

  13. In a survey, out of all students, 53% said 'No 20% said 'Yes' and the ...

    Text Solution

    |

  14. Two sections of class IX having 27 students in each section appeared f...

    Text Solution

    |

  15. Two sections of class IX having 27 students in each section appeared f...

    Text Solution

    |

  16. 100 plants each were sown in six different colonies A, B, C, D, E and ...

    Text Solution

    |

  17. 100 plants each were sown in six different colonies A, B, C, 0, E and ...

    Text Solution

    |

  18. The table shows the number of people visiting the 'Good-Living pavilio...

    Text Solution

    |

  19. The table shows the number of people visiting the 'Good-Living pavilio...

    Text Solution

    |

  20. A bag contains 20 balls out of which x are white. If 10 more white bal...

    Text Solution

    |