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प्रश्न
A card is drawn at random from a pack of 52 cards. Find the probability that the card drawn is:
either a black card or a king
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उत्तर
There are 26 black cards and 4 kings, but two kings are already black. Hence, we only need to count the red kings. Thus, the probability is: (26+2)/52 = 7/13
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संबंधित प्रश्न
Find the probabilities of the events given in Question 2.
Tell whether the given is certain to happen, impossible, can happen but not certain.
Tomorrow will be a cloudy day.
A card is drawn at random from a pack of 52 cards. Find the probability that the card drawn is:
neither an ace nor a king
A bag contains 3 red balls, 5 black balls and 4 white balls. A ball is drawn at random from the bag. What is the probability that the ball drawn is:
black?
If you have a collection of 6 pairs of white socks and 3 pairs of black socks. What is the probability that a pair you pick without looking is
black?
A glass jar contains 6 red, 5 green, 4 blue and 5 yellow marbles of same size. Hari takes out a marble from the jar at random. What is the probability that the chosen marble is of red colour?
Classify the following statements under appropriate headings.
- Getting the sum of angles of a triangle as 180°.
- India winning a cricket match against Pakistan.
- Sun setting in the evening.
- Getting 7 when a die is thrown.
- Sun rising from the west.
- Winning a racing competition by you.
| Certain to happen | Impossible to happen | May or may not happen |
In the previous question, what is the probability of picking up an ace from set (d)?
What is the probability that a student chosen at random out of 3 girls and 4 boys is a boy?
When a die is thrown, list the outcome of an event of getting not a prime number.
