Advertisements
Advertisements
प्रश्न
One card is drawn from a well-shuffled deck of 52 cards. Find the probability of getting the queen of diamonds.
उत्तर
Total number of cards in a well-shuffled deck = 52
Total number of queens of diamonds = 1
P (getting the queen of diamonds) = `"Number of favourable outcomes"/"Total number of outcomes"`
`= 1/52`
APPEARS IN
संबंधित प्रश्न
12 defective pens are accidentally mixed with 132 good ones. It is not possible to just look at a pen and tell whether or not it is defective. One pen is taken out at random from this lot. Determine the probability that the pen taken out is a good one.
A student argues that ‘there are 11 possible outcomes 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12. Therefore, each of them has a probability 1/11. Do you agree with this argument?
In a simultaneous throw of a pair of dice, find the probability of getting a doublet of odd numbers
A and B throw a pair of dice. If A throws 9, find B’s chance of throwing a higher number.
A black die and a white die are thrown at the same time. Write all the possible outcomes. What is the probability? that the sum of the two numbers that turn up is 8?
Find the probability that a number selected at random from the numbers 1, 2, 3, ..., 35 is a Multiple of 3 or 5
A box contains 90 discs which are numbered from 1 to 90. If one disc is drawn at random from the box, find the probability that it bears a number divisible by 5.
Cards marked with numbers 13, 14, 15, ...., 60 are placed in a box and mixed thoroughly.One card is drawn at random from the box. Find the probability that number on the card drawn is a number is a perfect square
Two dice (each bearing numbers 1 to 6) are rolled together. Find the probability that the sum of the numbers on the upper-most faces of two dice is 7, 8 or 9.
From a pack of 52 playing cards, all cards whose numbers are multiples of 3 are removed. A card is now drawn at random. What is the probability that the card drawn is a face card (King, Jack or Queen).
A bag contains 3 red, 3 white and 3 green balls. One ball is taken out of the bag at random. What is the probability that the ball drawn is – red.
If P(E) denotes the probability of an event E then
If the probability of winning a game is 5/11,what is the probability of losing?
A die is thrown 450 times and frequencies of the outcomes 1,2,3,4,5,6 were noted as given in the following table
outcomes | 1 | 2 | 3 | 4 | 5 | 6 |
Frequency | 73 | 70 | 74 | 75 | 80 | 78 |
(iii) a number > 4
1000 tickets of a lottery were sold and there are 5 prizes on these tickets. If Namita has purchased one lottery ticket, what is the probability of winning a prize?
Namita tossed a coin once. What is the probability of getting Head?
A die has 6 faces marked by the given numbers as shown below:
1 | 2 | 3 | – 1 | – 2 | – 3 |
The die is thrown once. What is the probability of getting a positive integer?
If P(A) denotes the probability of an event A, then ______.
In a lucky draw, there are 5 gifts and 25 blanks. The probability of getting a gift is ______.
Two dice are thrown at the same time. What is the probability that the sum of the two numbers appearing on the top of the dice is less than or equal to 12?