Advertisements
Advertisements
प्रश्न
A card is drawn from a well-shuffled pack of 52 cards. Find the probability of getting a black king.
उत्तर
Favourable outcomes = 2 (because there are 4 kings, 2 black and 2 red)
Total outcomes = 52
`P(E) = "Number of outcomes favourable to E"/"Number of all possible outcomes"`
`=2/52`
`=1/26`
Thus, the probability of getting a black king is`1/26.`
APPEARS IN
संबंधित प्रश्न
A card is drawn at random from a well-shuffled deck of playing cards. Find the probability that the card drawn is a card of spade or an ace.
In a single throw of a pair of different dice, what is the probability of getting (i) a prime number on each dice?
Two different dice are thrown together. Find the probability of getting a number greater than 3 on each die.
Three different coins are tossed together. Find the probability of getting at least two tails.
Two different dice are thrown together. Find the probability of getting a total of 6 or 7 of the numbers on two dice.
A Group consists of 12 persons, of which 3 are extremely patient, other 6 are extremely honest and rest are extremely kind. A person from the group is selected at random. Assuming that each person is equally likely to be selected, find the probability of selecting a person who is (i) extremely patient (ii) extremely kind or honest.
Which of the above values you prefer more?
A die is tossed once. Find the probability of getting an even number or a multiple of 3 ?
Cards bearing numbers 2, 3, 4, ..., 11 are kept in a bag. A card is drawn at random from the bag. The probability of getting a card with a prime number is
Cards numbered 1 to 30 are put in a bag. A card is drawn at random from this bag. Find the probability that the number on the drawn card is not divisible by 3
Cards numbered from 11 to 60 are kept in a box. If a card is drawn at random from the box, find the probability that the number on the drawn card is a perfect square number
In a bag there are 44 identical cards with figure of circle or square on them. There are 24 circles, of which 9 are blue and rest are green and 20 squares of which 11 are blue and rest are green. One card is drawn from the bag at random. Find the probability that it has the figure of green square.
It is known that a box of 200 electric bulbs contains 16 defective bulbs. One bulb is taken out at random from the box. What is the probability that the bulb drawn is defective.
Two different dice are tossed together. Find the probability that the number on each die is even.
A game of chance consists of spinning an arrow which is equally likely to come to rest pointing to one of the numbers 1, 2, 3,..., 12 as shown in the figure. What is the probability that it will point to an even number ?
From a well-shuffled deck of 52 cards, one card is drawn at random. What is the probability of getting a queen?
A die is thrown once. Find the probability of getting.
(a) a prime number.
(b) an odd number
A bag contains 15 balls, out of which some are white and the others are black. If the probability of drawing a black ball at random from the bag is `2/3`, then find how many white balls are there in the bag.
In a single throw of a die, find the probability of getting a number
(i) greater than 2
(ii) less than or equal to 2
(iii) not greater than 2.
A man is known to speak the truth 3 out of 4 times. He throws a die and a number other than six comes up. Find the probability that he reports it is a six.
Sonia picks up a card from the given cards.
Calculate the probability of getting a Y card
