Probability CBSE Questions & Answers

Probability

This is Mathematics Class 09 Probability CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
Probability of selecting a bulb from a bag is 1/3 then probability of not selecting a bulb from bag is
  • A
    \({3 \over 3}\)
  • B
    \({1 \over 3}\)
  • C
    \({2 \over 3}\)
    Correct
  • D
    Can not say
2
A number is selected at random from first 20 numbers then probability that number is a multiple of 3 is :-
  • A
    \({5 \over 18}\)
  • B
    \({3 \over 18}\)
  • C
    \({3 \over 10}\)
    Correct
  • D
    \({4 \over 18}\)
3
Probability of boy that he will get married with his girlfriend is \({2 \over 7}\) then probability that he will not get married will be:-
  • A
    \({7 \over 2}\)
  • B
    \({7 \over 10}\)
  • C
    \({5 \over 7}\)
    Correct
  • D
    \({2 \over 7}\)
4
Odds in favour of a target are 2 : 5 then probability of success is
  • A
    \({5 \over 7}\)
  • B
    \({2 \over 7}\)
    Correct
  • C
    \({5 \over 2}\)
  • D
    \({2 \over 5}\)
5
Odds against of an event are 5 : 8 then probability of happening of work is
  • A
    \({5 \over 8}\)
  • B
    \({8 \over 13}\)
    Correct
  • C
    \({5 \over 13}\)
  • D
    \({8 \over 5}\)
6
Probability of getting 53 thursdays in a non leap year is
  • A
    \({1 \over 7}\)
    Correct
  • B
    \({3 \over 7}\)
  • C
    \({2 \over 7}\)
  • D
    \({53 \over 366}\)
7
Probability of getting two heads in a single through of 3 coins is
  • A
    \({5 \over 8}\)
  • B
    \({7 \over 8}\)
  • C
    \({1 \over 8}\)
  • D
    \({3 \over 8}\)
    Correct
8
Probability of getting a red king from a well shuffled deck of 52 card is
  • A
    \({13 \over 52}\)
  • B
    \({1 \over 15}\)
  • C
    \({4 \over 52}\)
  • D
    \({2 \over 52}\)
    Correct
9
The probability of throwing a sum 9 with two dice is :
  • A
    \({1 \over 12}\)
  • B
    \({1 \over 18}\)
  • C
    \({1 \over 9}\)
    Correct
  • D
    \({1 \over 36}\)
10
Two coins are tossed simultaneously. The probability of getting no head is :
  • A
    \({1 \over 2}\)
  • B
    \({1 \over 4}\)
    Correct
  • C
    \({4 \over 4}\)
  • D
    \({3 \over 4}\)
11
A bag contains 5 black, 7 red and 3 white balls. A ball is drawn from the bag at random. The probability that the drawn ball is red, is :
  • A
    \({1 \over 15}\)
  • B
    \({5 \over 15}\)
  • C
    \({7 \over 15}\)
    Correct
  • D
    \({3 \over 15}\)
12
A card is drawn from a pack of 52 cards. The probability of drawing a red face card is :
  • A
    \({2 \over 13}\)
  • B
    \({3 \over 52}\)
  • C
    \({3 \over 26}\)
    Correct
  • D
    \({1 \over 13}\)
13
Five cards – nine, ten, jack, queen and king of hearts are well shuffled with their face downwards, one card is then picked up at random. The probability that the drawn card is a king, is :
  • A
    \({1 \over 5}\)
    Correct
  • B
    \({3 \over 5}\)
  • C
    \({4 \over 5}\)
  • D
    \({2 \over 5}\)
14
A die is thrown once. The probability of getting an even number is :
  • A
    \({1 \over 2}\)
    Correct
  • B
    1
  • C
    0
  • D
    \({1 \over 6}\)
15
If P(E) = 0.07, then the probability of ‘not E’ is :
  • A
    0.03
  • B
    0
  • C
    0.3
  • D
    0.93
    Correct