In a random experiment, the set of all possible outcomes is called: MCQ with Answer and Explanation

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In a random experiment, the set of all possible outcomes is called:

A. Sample space

B. Trial

C. Event

D. Outcome set

Answer: Option A

Solution (By JKSSB Mock Tests)

Sample space is the collection of all elementary outcomes of an experiment.

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1

A coin is tossed twice. The probability of getting at least one head is:

A. 1

B. 1/4

C. 1/2

D. 3/4

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Correct Answer: Option D

Explanation:
All outcomes except TT (1/4). So 1 - 1/4 = 3/4.

This question belongs to: Accountancy and Statistics Statistics

Question #2

In constructing a frequency distribution with exclusive class intervals, the upper limit of one class is:

A. Ignored in frequency counting

B. Always equal to the lower limit of the next class

C. Excluded from that class and included in the next higher class

D. Included in that class

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Correct Answer: Option C

Explanation:
In exclusive class intervals, the upper limit is not included in the class; observations equal to the upper limit are counted in the next higher class to avoid overlap and ensure mutual exclusivity.

This question belongs to: Accountancy and Statistics Statistics

Question #3

If events A and B are independent, which of the following must be true?

A. P(A|B) = P(A)

B. P(A) + P(B) = 1

C. A and B are mutually exclusive

D. P(A ∩ B) = 0

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Correct Answer: Option A

Explanation:
Independence means knowledge of B does not affect A's probability, so P(A|B) = P(A); this is equivalent to P(A∩B)=P(A)P(B).

This question belongs to: Accountancy and Statistics Statistics

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