If a fair coin is tossed three times, the probability of exactly two heads is: MCQ with Answer and Explanation

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If a fair coin is tossed three times, the probability of exactly two heads is:

A. 5/8

B. 3/8

C. 1/2

D. 1/4

Answer: Option B

Solution (By JKExamLibrary)

Number of ways: C(3,2)=3; each sequence probability (1/2)³; total 3/8.

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1 Report Error

In a standard deck, the probability of drawing a red king is:

A. 2/13

B. 1/26

C. 1/13

D. 1/52

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Correct Answer: Option B

Explanation:
2 red kings (hearts and diamonds) out of 52 = 2/52 = 1/26.

This question belongs to: Accountancy and Statistics Statistics

Question #2 Report Error

The sample space for tossing two fair coins is:

A. {2H, 1H1T, 2T}

B. {H, T}

C. {0, 1, 2}

D. {HH, HT, TH, TT}

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Correct Answer: Option D

Explanation:
The sample space lists all possible distinct outcomes; for two coin tosses, the outcomes are HH, HT, TH, and TT, representing the sequence of heads (H) and tails (T).

This question belongs to: Accountancy and Statistics Statistics

Question #3 Report Error

What is secondary data?

A. Data that already exists and is used by someone else

B. Data collected by the user for the first time

C. Data collected through experiments

D. Data collected through observation

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Correct Answer: Option A

Explanation:
Secondary data is data that has already been collected by someone else and is available for use.

This question belongs to: Accountancy and Statistics Statistics

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