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Question (21)

QN009978

A spinner has four equal sectors numbered 1, 2, 3 and 4. What is the probability of getting an odd number?

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

Correct Answer: B

Explanation:

Odd numbers are 1 and 3. Probability = 2/4 = 1/2.

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Question (22)

QN009979

Which of the following is a sample space for selecting a weekday?

(A) {Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday}
(B) {January, February}
(C) {Morning, Evening}
(D) {1, 2, 3}

Correct Answer: A

Explanation:

The days of the week form the sample space.

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Question (23)

QN009980

If two dice are rolled, how many outcomes are there in the sample space?

(A) 12
(B) 24
(C) 36
(D) 72

Correct Answer: C

Explanation:

Total outcomes = 6 × 6 = 36.

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Question (24)

QN009981

A fair die is rolled once. What is the event of getting a number greater than 3?

(A) {1, 2, 3}
(B) {4, 5, 6}
(C) {2, 4, 6}
(D) {1, 5, 6}

Correct Answer: B

Explanation:

Numbers greater than 3 are 4, 5 and 6.

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Question (25)

QN009982

Which of the following experiments has a sample size of 4?

(A) Tossing one coin
(B) Rolling one die
(C) Tossing two coins
(D) Rolling two dice

Correct Answer: C

Explanation:

Tossing two coins gives 4 outcomes.

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Question (26)

QN009983

A card is selected from cards numbered 1 to 8. 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 (27)

QN009984

Which of the following is an impossible event when rolling a die?

(A) Getting 2
(B) Getting 5
(C) Getting 7
(D) Getting an even number

Correct Answer: C

Explanation:

A standard die has numbers only from 1 to 6.

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Question (28)

QN009985

The sample space for choosing a month with 30 days is:

(A) {April, June, September, November}
(B) {January, March}
(C) {February}
(D) {All months}

Correct Answer: A

Explanation:

These are the months having 30 days.

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Question (29)

QN009986

Three coins are tossed together. How many outcomes are possible?

(A) 6
(B) 8
(C) 12
(D) 16

Correct Answer: B

Explanation:

Total outcomes = 2 × 2 × 2 = 8.

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Question (30)

QN009987

Which event represents getting at least one head when two coins are tossed?

(A) {TT}
(B) {HH}
(C) {HH, HT, TH}
(D) {HT, TT}

Correct Answer: C

Explanation:

At least one head includes HH, HT and TH.

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Question (21)

A spinner has four equal sectors numbered 1, 2, 3 and 4. What is the probability of getting an odd number?

Explanation:

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Question (22)

Which of the following is a sample space for selecting a weekday?

Explanation:

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Question (23)

If two dice are rolled, how many outcomes are there in the sample space?

Explanation:

Link:

Question (24)

A fair die is rolled once. What is the event of getting a number greater than 3?

Explanation:

Link:

Question (25)

Which of the following experiments has a sample size of 4?

Explanation:

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Question (26)

A card is selected from cards numbered 1 to 8. What is the probability of getting a multiple of 4?

Explanation:

Link:

Question (27)

Which of the following is an impossible event when rolling a die?

Explanation:

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Question (28)

The sample space for choosing a month with 30 days is:

Explanation:

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Question (29)

Three coins are tossed together. How many outcomes are possible?

Explanation:

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Question (30)

Which event represents getting at least one head when two coins are tossed?

Explanation:

Link:

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