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CBSE Worksheet for chapter-13 Probability class 9

Worksheet For class 9

Find CBSE Worksheet for chapter-13 Probability class 9

CLASS-9

BOARD: CBSE

Mathematic Worksheet - 13

TOPIC: Probability

For other CBSE Worksheet for class 9 Mathematic check out main page of Physics Wallah.

SUMMARY

OBJECTIVE

  1. 3 coins are tossed simultaneously .The probability of getting at least 2 heads is
    1. 3/10
    2. 3/4
    3. 3/8
    4. 1/2
  2. Two cards are drawn successively with replacement from a pack of 52 cards. The probability of drawing two aces is
    1. 1/169
    2. 1/221
    3. 1/265
    4. 4/663
  3. Two cards are drawn from a pack of 52 cards. The probability that both are spade is
    1. 1/26
    2. 1/4
    3. 1/17
    4. none of these
  4. If the odds in favor of an event be 3:5 then the probability of non happening of the event is
    1. 3/5
    2. 5/3
    3. 3/8
    4. 5/8
  5. If three coins are simultaneously tossed, compute the probability of 2 heads coming up
    1. (3 )/8
    2. 1/4
    3. 5/8
    4. 3/4
  6. A coin is tossed successively three times. The probability of getting one head or two heads is
    1. 2/3
    2. 3/4
    3. 4/9
    4. 1/9
  7. One card is drawn from a pack of 52 cards. What is the probability that the drawn card is either red or king
    1. 15/26
    2. 1/2
    3. 7/13
    4. 17/32

SUBJECTIVE

  1. Two dice are thrown together. Find the probability of getting a total of 9.
  2. A dice is thrown repeatedly until a six comes up. What is the sample space for this experiment ?
  3. On a simultaneous toss of three coins find the probability of getting
    1. At least 2 heads
    2. iAt most 2 heads
    3. Exactly 2 heads
  4. A coin is tossed 80 times with the following outcomes
    Find the probability of each event.
    1. Head: 35
    2. Tail: 45
  5. In cricket match a batsman hits a boundary 10 times out of 36 balls he plays. Find the probability that he did not hit the boundary.
  6. A bag which contains 7 blue marbles 4 black marbles and 9 white marbles. A marble is drawn at random from the bag then what is the probability that the drawn marble is
    1. blue
    2. white or black
  7. Cards, marked with no. 2 to 101 are placed in a box and mixed thoroughly One card is drawn from his box find the probability that the number on card is
    1. An even no.
    2. A no. less than 14
    3. A no. which is a perfect square.
    4. A prime number less than 20.
  8. An urn contains 6 oranges, 7 apples, 11 mangoes. A fruit is drawn at random what is the probability of drawing
    1. An orange
    2. Not apple
    3. An apple or mango.
  9. A card is drawn at random from a well shuffled desk of playing cards. Find the probability that the card drawn is
    1. A card of spade or an ace
    2. A red king
    3. Neither a king nor a queen
    4. Either a king or a queen

Solutions: to worksheet-13 Topic-Probability

Objective:

  1. d
  2. a
  3. c
  4. d
  5. a
  6. b
  7. c

Subjective:

  1. 1/9
  2. {6,(1,6)(2,6)(3,6)(4,6)(5,6)(1,1,6)(1,2,6)…}
  3. 1/2
    1. 7/19
    2. 9/16
  4. 13/18
    1. 7/20
    2. 13/20
    1. 1/2
    2. 3/25
    3.  
    4. 2/25
    1. 1/4
    2. 17/24
    3. 3/4
    1. 4/13
    2. 1/26
    3. 11/13
    4. 2/13

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