Advertisements
Advertisements
प्रश्न
There are six cards in a box, each bearing a number from 0 to 5. Find the probability of the following event, that a card drawn show, a whole number.
उत्तर
Total number of cards = 6
Number of cards bearing a whole number = 0, 1, 2, 3, 4, 5
= 6
Therefore, required probability =`\text { Number of cards bearing a whole number}/\text { Total number of cards}`
`=6/6`
=1
Hence, the probability that a card drawn shows a whole number is 1.
APPEARS IN
संबंधित प्रश्न
A piggy bank contains hundred 50 p coins, fifty Rs 1 coins, twenty Rs 2 coins and ten Rs 5 coins. If it is equally likely that one of the coins will fall out when the bank is turned upside down, what is the probability that the coin will be a 50 p coin?
Suppose you drop a die at random on the rectangular region shown in the given figure. What is the probability that it will land inside the circle with diameter 1m?
A die is thrown. Find the probability of getting:
an even prime number
In a simultaneous throw of a pair of dice, find the probability of getting a doublet of prime numbers
In a simultaneous throw of a pair of dice, find the probability of getting a sum less than 6
Find the probability that a number selected from the number 1 to 25 is not a prime number when each of the given numbers is equally likely to be selected.
From a pack of 52 playing cards Jacks, queens, kings and aces of red colour are removed. From the remaining, a card is drawn at random. Find the probability that the card drawn is a picture card (Jacks, queens and kings are picture cards)
A bag contains twenty Rs 5 coins, fifty Rs 2 coins and thirty Re 1 coins. If it is equally likely that one of the coins will fall down when the bag is turned upside down, what is the probability that the coin will neither be a Rs 5 coin nor be a Re 1 coin?
In a game of chance, a spinning arrow comes to rest at one of the numbers 1, 2, 3, 4, 5, 6, 7, 8. All these are equally likely outcomes. Find the probability that it will rest at 8.
Two dice are rolled once. Find the probability of getting such numbers on two dice whose product is a perfect square.
Two coins are tossed once. Find the probability of getting at least 1 tail.
A dice is thrown once. What is the probability that the number is even?
Two dice are thrown simultaneously. Find the probability of getting: a doublet of even number.
A letter of English alphabets is chosen at random. What is the probability that it is a letter of the word ‘MATHEMATICS’?
A game consists of spinning an arrow which comes to rest pointing at one of the regions (1, 2 or 3) (figure). Are the outcomes 1, 2 and 3 equally likely to occur? Give reasons.
The king, queen and jack of clubs are removed from a deck of 52 playing cards and then well shuffled. Now one card is drawn at random from the remaining cards. Determine the probability that the card is a king.
At a fete, cards bearing numbers 1 to 1000, one number on one card, are put in a box. Each player selects one card at random and that card is not replaced. If the selected card has a perfect square greater than 500, the player wins a prize. What is the probability that the first player wins a prize?
A bag contains 6 red, 4 black and some white balls:
- Find the number of white balls in the bag if the probability of drawing a white ball is `1/3`.
- How many red balls should be removed from the bag for the probability of drawing a white ball to be `1/2`?
For an event E, if `P(E) + P(barE)` = q, then the value of q2 − 4 is ______.
