Advertisements
Advertisements
प्रश्न
A card is drawn at random from a well-shuffled pack of 52 cards. Find the probability that at the card drawn is neither a red card nor a queen.
उत्तर
n(S) = 52.
Event = {getting neither a red card nor a queen}
∴ There are 26 red cards and 2 more queens are there.
Number of cards each one of which is either a red card or a queen = 28.
The event that the card drawn is neither a red card nor a queen = 52 - 28 = 24.
n(E) = 24
n(S) = 52
P(E) = ?
∴ P(E) = `"n(E)"/"n(S)" = 24/52 = 6/13.`
APPEARS IN
संबंधित प्रश्न
A single letter is selected at random from the word ‘Probability’. Find the probability that it is a vowel.
A bag contains in all 50 balls. Some of them are white, some are blue and some are red. The number of white balls is 11 times the number of blue balls. The number of red balls is less than the number of white balls. Also, the number of red balls is more than the number of blue balls. If one of the balls is selected at random from the bag, what is the probability that it is red ?
There are 30 tickets numbered from 1 to 30 in the box and a ticket is drawn at random. If A is the event that the number on the ticket is a perfect square, then write the sample space S, n(S), the event A and n(A).
A card is drawn at random from a well-shuffled pack of 52 playing cards. Find the probability of the events that the card drawn is :
(a) a king (b) a face card.
One card is randomly drawn from a pack of 52 cards. Find the probability that: the drawn card is red and a king.
One card is drawn from a pack of 52 cards, each of the 52 cards being equally likely to be drawn. Find the probability that the card is drawn is red.
One card is drawn from a pack of 52 cards, each of the 52 cards being equally likely to be drawn. Find the probability that the card is drawn is either red or king.
In a set of 25 cards, each card bears only one number from 1 to 25. One card is drawn randomly. Write the sample space for this random experiment
A box contains tokens numbered 5 to 16. A token is drawn at random. Find the probability that the token drawn bears a number divisible by:
- 5
- Neither by 2 nor by 3
Fill in the boxes:
Sunita choose a card from a well-shuffled deck of 52 cards.
Let F be the event that the choosen card is an eight of the spade.
Number of the eight of the spade = `square`
Thus, P(F) = `square/square`
= `square/square`
