Advertisements
Advertisements
प्रश्न
A box contains 7 red balls, 8 green balls and 5 white balls. A ball is drawn at random from the box. Find the probability that the ball is white.
उत्तर
Total number of balls in the box = 7 + 8 + 5 = 20 balls
Total possible outcomes = 20 = n(S)
Event of drawing a white ball = E = number of white balls
n(E) = 5
Probability of drawing a white ball= `(n(E))/(n(S)) = 5/20 = 1/4`
APPEARS IN
संबंधित प्रश्न
In a single throw of a dice, find the probability that the number will be an odd number.
If the probability of happening of an event A is 0.46. What will be the probability of not happening of the event A?
From 25 identical cards, numbered 1, 2, 3, 4, 5, ......, 24, 25; one card is drawn at random. Find the probability that the number on the card drawn is a multiple of 3 and 5.
A card is drawn from a well-shuffled pack of 52 cards. Find the probability that the card drawn is a spade.
A card is drawn from a well-shuffled pack of 52 cards. Find the probability that the card drawn is a red or a king.
A bag contains 3 red balls, 4 blue balls and 1 yellow ball, all the balls being identical in shape and size. If a ball is taken out of the bag without looking into it; find the probability that the ball is yellow.
Which of the following cannot be the probability of an event?
0.82
If n(A) = 1 and n(S) = 13 then find P(A).
An unbiased dice is thrown. What is the probability of getting a number other than 4.
Two dice are thrown simultaneously. Find the probability of getting six as the product.
