Probability - Numerical Test Questions and Answers
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A card is drawn from a pack of 52 cards. The probability of getting a queen of club or a king of heart is:
Answer & Explanation:
Answer: Option C
Explanation: Here, n(S) = 52.
Let E = event of getting a queen of club or a king of heart.
Then, n(E) = 2.
P(E) = n(E)/n(S) = 2/52 = 1/26.
A bag contains 4 white, 5 red and 6 blue balls. Three balls are drawn at random from the bag. The probability that all of them are red, is:
Answer & Explanation:
Answer: Option C
Explanation:
Two cards are drawn together from a pack of 52 cards. The probability that one is a spade and one is a heart, is:
Answer & Explanation:
Answer: Option D
Explanation:
One card is drawn at random from a pack of 52 cards. What is the probability that the card drawn is a face card (Jack, Queen and King only)?
Answer & Explanation:
Answer: Option B
Explanation: Clearly, there are 52 cards, out of which there are 12 face cards.
P (getting a face card) = 12/52 = 3/13.
A bag contains 6 black and 8 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
Answer & Explanation:
Answer: Option B
Explanation: Let number of balls = (6 + 8) = 14.
Number of white balls = 8.
P (drawing a white ball) = 8/14 = 4/7.