Advertisements
Advertisements
प्रश्न
A die thrown once. What is the probability of getting a number lying between 2 and 6?
उत्तर
A dice is thrown once
TO FIND: Probability of getting a number lying between 2 and 6.
Total number on a dice is 6.
Number lying between 2 and 6 are 3, 4 and 5
Total number of numbers lying between 2 and 6 is 3
`"We know that PROBABILITY" = "Number of favourable event"/"Total number of event"`
Hence probability of getting a number lying between 2 and `6 = 3/6=1/2`
Hence probability of getting a number lying between 2 and `6 =1/2`
APPEARS IN
संबंधित प्रश्न
A box contains 20 cards numbered from 1 to 20. A card is drawn at random from the box. Find the probability that the number on the drawn card is divisible by 2 or 3.
A box contains cards bearing numbers from 6 to 70. If one card is drawn at random from the box, find the probability that it bears
(i) a one digit number.
(ii) a number divisible by 5.
(iii) an odd number less than 30.
(iv) a composite number between 50 and 70.
Two dice are thrown together. The probability of getting the same number on both dice is.
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
A box contains 80 discs which are numbered from 1 to 80. If one disc is drawn at random from the box, find the probability that it bears a perfect square number.
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 non-defective.
A game of chance consists of spinning an arrow, which comes to rest pointing at one of the numbers 1, 2, 3, 4, 5, 6, 7, 8 and these are equally likely outcomes. Find the probability that the arrow will point at any factor of 8.
A card is drawn at random from a well-shuffled pack of 52 cards. Find the probability of getting a red king,
Two different dice are rolled simultaneously. Find the probability that the sum of the numbers on the two dice is 10.
Two dice are rolled together. Find the probability of getting such numbers on the two dice whose product is 12.
Cards numbered 1 to 30 are put in a bag. A card is drawn at random from the bag. Find the probability that the number on the drawn card is a prime number greater than 7.
A bag contains 18 balls out of which x balls are red. If two more red balls are put in the bag, the probability of drawing a red ball will be `9/8` times the probability of drawing a red ball in the first case. Find the value of x.
All red face cards are removed from a pack of playing cards. The remaining cards are well shuffled and then a card is drawn at random from them. Find the probability that the drawn card is a red card.
Find If A If tan 2A = cot (A-24°)
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 die is thrown, find the probability of getting:
a number not greater than 4.
A bag contains a black ball, a red ball and a green ball, all the balls are identical in shape and size. A ball is drawn from the bag without looking into it. What is the probability that the ball drawn is:
(i) a red ball
(ii) not a red ball
(iii) a white ball.
A dice is rolled once. What is the probability that the number on top will be odd
Sonia picks up a card from the given cards.
Calculate the probability of getting a G card
