Question

can someone please give me MCQ of chapter probablity class 10 NO SPAMS OR YOU WILL REGRET 20 YEARS OF BADLUCK TO THE SPAMMERS​

Answer 1

(1)   The probability of a leap year selected at random contain 53 Sunday is:

         (a) 53/ 366

(b) 1/7

(c) 2/7

(d) 53/365

(2)   A bag contains 3 red and 2 blue marbles. A marble is drawn at random. The probability of drawing a black ball is :

         (a) 3/5

(b) 2/5

(c) 0/5

(d) 1/5

(3)   The probability that it will rain tomorrow is 0.85. What is the probability that it will not rain tomorrow

         (a) 0.25

(b) 0.145

(c) 3/20

(d) none of these

(4)   What is the probability that a number selected from the numbers (1, 2, 3,..........,15) is a multiple of 4?

         (a) 1/5

(b) 4/5

(c) 2/15

(d) 1/3

(5)   What are the total outcomes when we throw three coins?

         (a) 4

(b) 5

(c) 8

(d) 7

(6)   The probability that a prime number selected at random from the numbers (1,2,3, ..........35) is :

         (a) 12/35

(b) 11/35

(c) 13/35

(d) none of these

(7)   The sum of the probability of an event and non event is :

         (a) 2

(b) 1

(c) 0

(d) none of these.

(8)   The following probabilities are given; choose the correct answer for that which is not possible.

         (a) 0.15

(b) 2/7

(c) 7/5

(d) none of these.

(9)   If three coins are tossed simultaneously, than the probability of getting at least two heads, is

         (a) 1/4

(b) 3/8

(c) 1/2

(d) 1/8

(10)   A letter is chosen at random from the letters of the word ASSASSINATION. The probability that the letter chosen has:

            (a) 6/13

(b) 7/13

(c) 1

(d) none of these.

Answer 2

1. The probability of event equal to zero is called;

(a)Unsure event

(b)Sure Event

(c)Impossible event

(d)Independent event

Answer: c

Explanation: The probability of event that cannot be happened or which is impossible is equal to zero.

2. The probability that cannot exist among the following:

(a)⅔

(b)-1.5

(c)15%

(d)0.7

Answer: b

Explanation: The probability lies between 0 and 1, hence it cannot be negative.

3. If P(E) = 0.07, then what is the probability of ‘not E’?

(a)0.93

(b)0.95

(c)0.89

(d)0.90

Answer: a

Explanation: P(E) + P(not E) = 1

Since P(E) = 0.05

So, P(not E) = 1 – P(E)

Or, P(not E) = 1 – 0.07

∴ P(not E) = 0.93

4. A bag has 3 red balls and 5 green balls. If we take a ball from the bag, then what is the probability of getting red balls only?

(a)3

(b)8

(c)⅜

(d)8/3

Answer: c

Explanation: Number of red balls = 3

Number of green balls = 5

Total balls in bag = 3+5 = 8

Probability of getting red balls = number of red balls/total number of balls

= ⅜

5. A bag has 5 white marbles, 8 red marbles and 4 purple marbles. If we take a marble randomly then what is the probability of not getting purple marble?

(a)0.5

(b)0.66

(c)0.08

(d)0.77

Answer: d

Explanation: Total number of purple marbles = 4

Total number of marbles in bag=5+8+4=17

Probability of getting purple marbles = 4/17

Hence, the probability of not getting purple marbles = 1-4/17 = 0.77

6. A dice is thrown in the air. The probability of getting odd numbers is

(a)½

(b)3/2

(c)3

(d)4

Answer: a

Explanation: A dice has six faces having values 1,2,3,4,5 and 6.

There are three odd numbers and three even numbers.

Therefore, the probability of getting only odd numbers is = 3/6 = ½

7. If we throw two coins in air, then the probability of getting both tails will be:

(a)½

(b)¼

(c)2

(d)4

Answer: b

Explanation: When two coins are tossed, the total outcomes will be = 2 x 2 = 4

Hence, the probability of getting both tails = ¼

8. If two dice are thrown in air, the probability of getting sum as 3 will be

(a)2/18

(b)3/18

(c)1/18

(d)1/36

Answer: c

Explanation: When two dice are thrown in air:

Total number of outcome = 6 x 6 = 36

Sum 3 is possible if we get (1,2) or (2,1) in the dices.

Hence, the probability will be = 2/36 = 1/18

9. A card is drawn from the set of 52 cards. Find the probability of getting queen card.

(a)1/26

(b)1/13

(c)4/53

(d)4/13

Answer: b

Explanation: Total number of cards = 52

Number of queen cards= 4

The probability of getting queen card = 4/52 = 1/13

10. A fish tank has 5 male fish and 8 female fish. The probability of fish taken out is a male fish:

(a)5/8

(b)5/13

(c)13/5

(d)5

Answer: b

Explanation: Total fish = 5+8 = 13

Probability of taking out a male fish = 5/13

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