Default Title

Question (11)

QN0026636

Two coins are tossed. What is the probability of getting at least one tail?

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

Correct Answer: C

Explanation:

Outcomes with at least one tail are HT, TH and TT. Probability = 3/4.

Link:

Report Error

Question (12)

QN0026637

A card numbered from 1 to 10 is selected randomly. What is the probability of selecting a multiple of 3?

(A) 1/10
(B) 2/10
(C) 3/10
(D) 4/10

Correct Answer: C

Explanation:

Multiples of 3 are 3, 6 and 9. Probability = 3/10.

Link:

Report Error

Question (13)

QN0026638

Which of the following best describes a sample space?

(A) Collection of favourable outcomes only
(B) List of impossible events
(C) Set of all possible outcomes
(D) Record of observations only

Correct Answer: C

Explanation:

A sample space includes every possible outcome of an experiment.

Link:

Report Error

Question (14)

QN0026639

A die is rolled twice. How many outcomes are possible?

(A) 12
(B) 24
(C) 36
(D) 48

Correct Answer: C

Explanation:

Total outcomes = 6 × 6 = 36.

Link:

Report Error

Question (15)

QN0026640

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

(A) 1/7
(B) 2/7
(C) 3/7
(D) 1/2

Correct Answer: B

Explanation:

The word SCIENCE has 7 letters and C appears twice.

Link:

Report Error

Question (16)

QN0026641

Which of the following events is certain when a standard die is rolled?

(A) Getting an even number
(B) Getting a prime number
(C) Getting a number less than 7
(D) Getting the number 3

Correct Answer: C

Explanation:

Every outcome on a standard die is less than 7.

Link:

Report Error

Question (17)

QN0026642

A tree diagram is most useful for:

(A) Measuring distances
(B) Listing outcomes systematically
(C) Solving equations
(D) Drawing maps

Correct Answer: B

Explanation:

Tree diagrams help organise all possible outcomes clearly.

Link:

Report Error

Question (18)

QN0026643

Three coins are tossed together. What is the probability of getting exactly three tails?

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

Correct Answer: A

Explanation:

Only TTT is favourable out of 8 outcomes.

Link:

Report Error

Question (19)

QN0026644

A survey shows that 36 out of 90 students prefer football. What is the probability that a randomly selected student prefers football?

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

Correct Answer: A

Explanation:

Probability = 36/90 = 2/5.

Link:

Report Error

Question (20)

QN0026645

A box contains slips numbered from 1 to 12. What is the probability of drawing a number divisible by both 2 and 3?

(A) 1/12
(B) 1/6
(C) 1/4
(D) 1/3

Correct Answer: B

Explanation:

Numbers divisible by both 2 and 3 are 6 and 12. Probability = 2/12 = 1/6.

Link:

Report Error

Question (11)

Two coins are tossed. What is the probability of getting at least one tail?

Explanation:

Link:

Question (12)

A card numbered from 1 to 10 is selected randomly. What is the probability of selecting a multiple of 3?

Explanation:

Link:

Question (13)

Which of the following best describes a sample space?

Explanation:

Link:

Question (14)

A die is rolled twice. How many outcomes are possible?

Explanation:

Link:

Question (15)

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

Explanation:

Link:

Question (16)

Which of the following events is certain when a standard die is rolled?

Explanation:

Link:

Question (17)

A tree diagram is most useful for:

Explanation:

Link:

Question (18)

Three coins are tossed together. What is the probability of getting exactly three tails?

Explanation:

Link:

Question (19)

A survey shows that 36 out of 90 students prefer football. What is the probability that a randomly selected student prefers football?

Explanation:

Link:

Question (20)

A box contains slips numbered from 1 to 12. What is the probability of drawing a number divisible by both 2 and 3?

Explanation:

Link:

Excel With Tutors

ExcelWithTutors

For Student

For Tutors

Learn

OUR POLICY