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Question (11)

QN009908

The set of all possible outcomes of a random experiment is called:

(A) Event
(B) Trial
(C) Sample space
(D) Frequency

Correct Answer: C

Explanation:

Sample space contains all possible outcomes.

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Question (12)

QN009909

A letter is chosen randomly from the word “MANGO”. What is the probability of selecting the letter M?

(A) 1/4
(B) 1/5
(C) 2/5
(D) 1

Correct Answer: B

Explanation:

The word MANGO has 5 letters and only one M.

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Question (13)

QN009910

Which of the following has equally likely outcomes?

(A) Picking a marble from a bag with 9 red and 1 blue marble
(B) Tossing a fair coin
(C) Rain tomorrow
(D) A biased die

Correct Answer: B

Explanation:

In a fair coin toss, both outcomes are equally likely.

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Question (14)

QN009911

A card numbered from 1 to 10 is drawn randomly. What is the probability of getting an even number?

(A) 1/10
(B) 2/5
(C) 1/2
(D) 3/5

Correct Answer: C

Explanation:

Even numbers are 2, 4, 6, 8, 10. Probability = 5/10 = 1/2.

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Question (15)

QN009912

A spinner has numbers 1 to 8 marked equally. What is the probability of getting a multiple of 4?

(A) 1/8
(B) 1/4
(C) 3/8
(D) 1/2

Correct Answer: B

Explanation:

Multiples of 4 are 4 and 8. Probability = 2/8 = 1/4.

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Question (16)

QN009913

In a survey of 100 students, 40 liked football. The probability that a randomly selected student likes football is estimated as:

(A) 0.2
(B) 0.4
(C) 0.5
(D) 0.8

Correct Answer: B

Explanation:

Probability = 40/100 = 0.4.

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Question (17)

QN009914

Which statement is correct regarding Gambler’s Fallacy?

(A) Previous outcomes affect future outcomes in coin tosses
(B) A coin remembers earlier tosses
(C) Each toss of a fair coin is independent
(D) Tails must appear after many heads

Correct Answer: C

Explanation:

Every coin toss is independent of previous tosses.

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Question (18)

QN009915

A fair coin is tossed three times. What is the probability of getting all heads?

(A) 1/2
(B) 1/4
(C) 1/8
(D) 3/8

Correct Answer: C

Explanation:

Total outcomes = 8 and only HHH is favourable.

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Question (19)

QN009916

Which of the following events is impossible?

(A) Rolling a number less than 7 on a die
(B) Getting a tail on a coin toss
(C) Drawing a king from a pack of cards
(D) Rolling a 9 on a standard die

Correct Answer: D

Explanation:

A standard die contains only numbers 1 to 6.

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Question (20)

QN009917

A bag contains 4 red, 3 yellow, and 3 white balls. One ball is drawn randomly. What is the probability that the ball drawn is not red?

(A) 2/5
(B) 3/5
(C) 1/5
(D) 4/5

Correct Answer: B

Explanation:

Non-red balls = 6 out of total 10. Probability = 6/10 = 3/5.

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Question (11)

The set of all possible outcomes of a random experiment is called:

Explanation:

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Question (12)

A letter is chosen randomly from the word “MANGO”. What is the probability of selecting the letter M?

Explanation:

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Question (13)

Which of the following has equally likely outcomes?

Explanation:

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Question (14)

A card numbered from 1 to 10 is drawn randomly. What is the probability of getting an even number?

Explanation:

Link:

Question (15)

A spinner has numbers 1 to 8 marked equally. What is the probability of getting a multiple of 4?

Explanation:

Link:

Question (16)

In a survey of 100 students, 40 liked football. The probability that a randomly selected student likes football is estimated as:

Explanation:

Link:

Question (17)

Which statement is correct regarding Gambler’s Fallacy?

Explanation:

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Question (18)

A fair coin is tossed three times. What is the probability of getting all heads?

Explanation:

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Question (19)

Which of the following events is impossible?

Explanation:

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Question (20)

A bag contains 4 red, 3 yellow, and 3 white balls. One ball is drawn randomly. What is the probability that the ball drawn is not red?

Explanation:

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