A card is drawn from a well-shuffled deck of 52 cards. The probability that it is a jack or a spade is: MCQ with Answer and Explanation
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Question #1
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The geometric mean of 1, 2, 4, 8, 16 is:
Correct Answer: Option D
Explanation:
Product = 1×2×4×8×16 = 1024. 1024^(1/5) = 4 (since 4^5=1024).
Product = 1×2×4×8×16 = 1024. 1024^(1/5) = 4 (since 4^5=1024).
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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In probability, an event that contains all possible outcomes is called:
Correct Answer: Option A
Explanation:
Sure event equals the sample space, P = 1.
Sure event equals the sample space, P = 1.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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Which of the following pairs of events are independent?
Correct Answer: Option D
Explanation:
Coin tosses are independent. In A, without replacement, not independent. In B, outcome of first affects probability of sum. In D, P(B|A) >0 but P(B|A')=0, so not independent.
Coin tosses are independent. In A, without replacement, not independent. In B, outcome of first affects probability of sum. In D, P(B|A) >0 but P(B|A')=0, so not independent.
This question belongs to:
Accountancy and Statistics
Statistics
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