CBSE Board Practice

Class VI Class VII Class VIII Class IX Class X
CBSE Grade X - Probability
Question 1
1.
    • The distances (in km) of engineers from their residence to their place of work were found as follows
      • 2
      • 16
      • 29
      • 17
      • 17
      • 15
      • 30
      • 26
      • 6
    • What is the empirical probability that an engineer lives greater than 6 km from her place of work?
  • 8
    9
  • 4
    5
  • 2
    9
  • 2
    3
  • 7
    9
Question 2
2.
A survey of 90 men showed that only 35 of them know English. Out of these men, if one is selected at random, what is the probability that the selected man knows English?
  • 4
    9
  • 7
    18
  • 11
    18
  • 8
    19
  • 1
    3
Question 3
3.
Two players Kajal and Aparna play a tennis match. It is known that the probability of Kajal winning the match is 0.50. What is the probability of Aparna winning the match?
  • 4
    5
  • 1
    2
  • 2
    3
  • 3
    4
  • 5
    6
Question 4
4.
One card is drawn at random from a well shuffled deck of 52 cards. What is the probability that the card drawn is a jack of clubs?
  • 1
    13
  • 1
    4
  • 3
    13
  • 1
    52
  • 1
    26
Question 5
5.
Two unbiased coins are tossed simultaneously. Find the probability of getting at least one head.
  • 1
    2
  • 3
    4
  • 1
    4
  • 4
    5
  • 1
Question 6
6.
One card is drawn at random from a well shuffled deck of 52 cards. What is the probability that the card drawn is a face card ?
  • 3
    13
  • 1
    52
  • 1
    4
  • 1
    26
  • 1
    13
Question 7
7.
When a card is selected randomly out of a pack of cards, how many elementary events are possible?
  • 53
  • 54
  • 52
  • 50
  • 51
Question 8
8.
    • A die is thrown 340 times with the frequencies for outcomes 1, 2, 3, 4, 5 and 6 as given in the following table
    • Outcome
      1
      2
      3
      4
      5
      6
      Frequency
      30
      50
      55
      60
      65
      80
    • If the die is thrown again randomly, find the probability of getting 2 as outcome.
  • 5
    34
  • 6
    35
  • 2
    17
  • 3
    17
  • 29
    34
Question 9
9.
Three unbiased coins are tossed simultaneously. Find the probability of getting no head.
  • 0
  • 1
    4
  • 1
    8
  • 2
    9
  • 7
    8
Question 10
10.
Three unbiased coins are tossed simultaneously. Find the probability of getting at most one head.
  • 3
    4
  • 2
    3
  • 4
    5
  • 5
    6
  • 1
    2