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Question (1)

QN009928

Experimental probability is calculated using:

(A) Future predictions
(B) Number of favourable outcomes only
(C) Actual observations from trials
(D) Assumptions without data

Correct Answer: C

Explanation:

Experimental probability is based on actual observations from repeated trials.

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Question (2)

QN009929

The formula for experimental probability is:

(A) Favourable outcomes × Total outcomes
(B) Number of trials ÷ Event occurrences
(C) Event occurrences ÷ Total trials
(D) Total outcomes ÷ Favourable outcomes

Correct Answer: C

Explanation:

Experimental probability = Number of times the event occurred ÷ Total number of trials.

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Question (3)

QN009930

A die is rolled 40 times and the number 5 appears 6 times. What is the experimental probability of getting 5?

(A) 3/20
(B) 5/40
(C) 1/5
(D) 6/5

Correct Answer: A

Explanation:

Experimental probability = 6/40 = 3/20.

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Question (4)

QN009931

Which of the following is based on equally likely outcomes?

(A) Experimental probability
(B) Statistical survey
(C) Theoretical probability
(D) Sampling

Correct Answer: C

Explanation:

Theoretical probability assumes all outcomes are equally likely.

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Question (5)

QN009932

A fair coin is tossed 50 times and heads appears 28 times. What is the relative frequency of heads?

(A) 14/25
(B) 11/25
(C) 7/25
(D) 28/50

Correct Answer: A

Explanation:

Relative frequency = 28/50 = 14/25.

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Question (6)

QN009933

The set of all possible outcomes of an experiment is called:

(A) Event
(B) Probability
(C) Sample space
(D) Frequency table

Correct Answer: C

Explanation:

Sample space contains all possible outcomes.

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Question (7)

QN009934

A standard die is rolled once. The theoretical probability of getting 2 is:

(A) 1/2
(B) 1/3
(C) 1/6
(D) 2/3

Correct Answer: C

Explanation:

Only one favourable outcome exists out of 6 possible outcomes.

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Question (8)

QN009935

Which statement correctly defines theoretical probability?

(A) It is based on survey reports only
(B) It is based on equally likely outcomes without experimentation
(C) It depends only on past records
(D) It changes after every trial

Correct Answer: B

Explanation:

Theoretical probability is determined without conducting experiments.

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Question (9)

QN009936

A letter is selected randomly from the word “PROBABILITY”. What is the probability of selecting B?

(A) 1/11
(B) 2/11
(C) 3/11
(D) 1/5

Correct Answer: B

Explanation:

There are 2 Bs among 11 letters.

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Question (10)

QN009937

A die is rolled 24 times and the number 3 appears 5 times. What is the experimental probability of getting 3?

(A) 5/24
(B) 3/24
(C) 1/6
(D) 19/24

Correct Answer: A

Explanation:

Experimental probability = 5/24.

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Question (1)

Experimental probability is calculated using:

Explanation:

Link:

Question (2)

The formula for experimental probability is:

Explanation:

Link:

Question (3)

A die is rolled 40 times and the number 5 appears 6 times. What is the experimental probability of getting 5?

Explanation:

Link:

Question (4)

Which of the following is based on equally likely outcomes?

Explanation:

Link:

Question (5)

A fair coin is tossed 50 times and heads appears 28 times. What is the relative frequency of heads?

Explanation:

Link:

Question (6)

The set of all possible outcomes of an experiment is called:

Explanation:

Link:

Question (7)

A standard die is rolled once. The theoretical probability of getting 2 is:

Explanation:

Link:

Question (8)

Which statement correctly defines theoretical probability?

Explanation:

Link:

Question (9)

A letter is selected randomly from the word “PROBABILITY”. What is the probability of selecting B?

Explanation:

Link:

Question (10)

A die is rolled 24 times and the number 3 appears 5 times. What is the experimental probability of getting 3?

Explanation:

Link:

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