Advertisements
Advertisements
प्रश्न
A die is thrown, find the probability of getting:
a number not greater than 4.
उत्तर
A die has six numbers: 1, 2, 3, 4, 5, 6
∴ Number of possible outcomes = 6
Number of favourable outcomes = not greater than 4 or numbers will be 1,2,3,4 which are 4 in numbers
P(E) = `"Number of favourable outcomes"/"Number of all possible outcomes"`
= `4/6 = 2/3`
APPEARS IN
संबंधित प्रश्न
A box consists of 100 shirts of which 88 are good, 8 have minor defects and 4 have major defects. Ramesh, a shopkeeper will buy only those shirts which are good but 'Kewal' another shopkeeper will not buy shirts with major defects. A shirt is taken out of the box at random. What is the probability that
(i) Ramesh will buy the selected shirt?
(ii) 'Kewal' will buy the selected shirt?
All red face cards are removed from a pack of playing cards. The remaining cards were well shuffled and then a card is drawn at random from them. Find the probability that the drawn card is
(i) a red card
(ii) a face card
(iii) a card of clubs
The probability of selecting a rotten apple randomly from a heap of 900 apples is 0.18. What is the number of rotten apples in the heap?
The probability of getting an even number, when a die is thrown once, is :
(A) `1/2`
(B)`1/3`
(C)`1/6`
(D)`5/6`
A bag contains cards numbered from 1 to 49. A card is drawn from the bag at random, after mixing the card thoroughly. Find the probability that the number on the drawn card is a perfect square
A bag contains cards numbered from 1 to 49. A card is drawn from the bag at random, after mixing the card thoroughly. Find the probability that the number on the drawn card is an even prime number
Red queens and black jacks are removed from a pack of 52 playing cards. A card is drawn at random from the remaining cards, after reshuffling them. Find the probability that the card drawn is of red colour
A number is selected from first 50 natural numbers. What is the probability that it is a multiple of 3 or 5?
If a two digit number is chosen at random, then the probability that the number chosen is a multiple of 3, is
A card is drawn at random from a well-shuffled pack of 52 cards. Find the probability of getting a red king,
A box contains 25 cards numbered from 1 to 25. A card is drawn at random from the bag. Find the probability that the number on the drawn card is a prime number.
A die is thrown once. The probability of getting an even number is
Basketball players John, Vasim, Akash were practising the ball drop in the basket. The probabilities of success for John, Vasim and Akash are `4 /5`, 0.83 and 58% respectively. Who had the greatest probability of success ?
In a hockey team there are 6 defenders, 4 offenders and 1 goalee. Out of these, one player is to be selected randomly as a captain. Find the probability of the selection that – A defender will be selected.
Cards numbered 7 to 40 were put in a box. Poonam selects a card at random. What is the probability that Poonam selects a card which is a multiple of 7?
A bag contains 3 white, 5 black, and 2 red balls, all of the same shape and size. A ball is drawn from the bag without looking into it, find the probability that the ball drawn is not a black ball.
Three identical coins are tossed together. What is the probability of obtaining:
all heads?
In a throw of a dice, the probability of getting the number 7 is ______.
A dice is rolled once. What is the probability that the number on top will be less than 1
Three coins are tossed simultaneously. What is the probability of getting at most one tail?
