Home
Class 9
MATHS
On one page of a telephone directory, th...

On one page of a telephone directory, there were 200 telephone numbers. The frequency distribution of their unit place digit (for example, in the number 25828573, the unit place digit is 3) is given in the table below: A number is chosen at random, find the probability that the digit at its unit’s place is: (i)  6  (ii) a non-zero multiple of 3 (iii)  a non-zero even number  (iv)  an odd number.

Text Solution

AI Generated Solution

To solve the problem step by step, we will calculate the probability for each case based on the frequency distribution of the unit place digits from the telephone directory. ### Given Data: - Total telephone numbers = 200 - Frequency distribution of unit place digits (assumed from the context): - 0: 10 - 1: 26 - 2: 22 ...
Promotional Banner

Topper's Solved these Questions

  • NUMBER SYSTEM

    RD SHARMA ENGLISH|Exercise All Questions|130 Videos
  • QUADRILATERALS

    RD SHARMA ENGLISH|Exercise All Questions|250 Videos

Similar Questions

Explore conceptually related problems

On one page of a telephone directory, there were 200 telephone numbers. The frequency distribution of their unit place digit (for example, in the number 25828573, the unit place digit is 3) is given in Table: Without looking at the page, the pencil is placed on one of the numbers i.e the number it chosen at random. What is the probability that the digit in its unit place is 6?

What is the digit in the unit's place of (1008)^(786) ?

The digit in the unit's place of (153)^(98) is

What is the digit in the unit's place of (143)^(86)" ? "

What is the digit in unit's place of (1354)^(22222)" ? "

A five digit number is chosen at random. The probability that all the digits are distinct and digits at odd places are odd and digits at even places are even, is

What is the digit in the unit's place of (2419)^(111213) ?

A book contains 92 pages. A page is chosen at random. What is the probability that the sum of the digits in the page number is 9?

Three-digit numbers are formed using the digits 0,1, 2, 3, 4, 5 without repetition of digits. If a number is chosen at random, then the probability that the digits either increase or decrease, is

What is the digit in the unit's place of (5172)^(11327)" ? "

RD SHARMA ENGLISH-PROBABILITY-All Questions
  1. To know the opinion of the students about Mathematics, a survey of 2...

    Text Solution

    |

  2. opp side of ||gm are equal

    Text Solution

    |

  3. On one page of a telephone directory, there were 200 telephone numbe...

    Text Solution

    |

  4. Show that the opposite sides of a parallelogram are equal.

    Text Solution

    |

  5. Given below is the frequency distribution of wages: A worker is selec...

    Text Solution

    |

  6. The distances (in km) of 40 female engineers from their residence to...

    Text Solution

    |

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

    Text Solution

    |

  8. Three coins are tossed simultaneously 100 times the following freque...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  16. 1000 families with 2 children were selected randomly, and the follo...

    Text Solution

    |

  17. The percentage of marks obtained by a student in the monthly unit te...

    Text Solution

    |

  18. On one page of a telephone directory, there were 200 telephone numbe...

    Text Solution

    |

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

    Text Solution

    |

  20. Fifty seeds were selected at random from each of 5 bags of seeds, a...

    Text Solution

    |