Advertisements
Advertisements
Question
In a race between Mahesh and John, the probability that John will lose the race is 0.54. Find the probability of:
- winning of Mahesh
- winning of John
Solution
i. But if John looses, Mahesh wins
Hence, probability of John losing the race = Probability of Mahesh winning the race since it is a race between these two only
Therefore, P(winning of Mahesh) = 0.54
ii. P(winning of Mahesh) + P(winning of John) = 1
0.54 + P(winning of John) = 1
P(winning of John) = 1 – 0.54
P(winning of John) = 0.46
APPEARS IN
RELATED QUESTIONS
A game of numbers has cards marked with 11, 12, 13, ....., 40. A card is drawn at random. Find the probability that the number on the card drawn is a perfect square.
A bag contains 5 white balls, 6 red balls and 9 green balls. A ball is drawn at random from the bag. Find the probability that the ball drawn is
- a green ball.
- a white or a red ball.
- neither a green ball nor a white ball.
Which of the following cannot be the probability of an event?
0.35
In a match between A and B; the probability of winning of A is 0.83. What is the probability of winning of B?
A and B are friends. Ignoring the leap year, find the probability that both friends will have the same birthday?
All the three face cards of spades are removed from a well-shuffled pack of 52 cards. A card is then drawn at random from the remaining pack. Find the probability of getting a black card.
Two different dice are thrown together. Find the probability that the product of the numbers appeared is less than 18 ?
A bag contains a red ball , a blue ball and a yellow ball , all the balls being of the same size . Anjali takes out a ball from the bag without looking into it . what is the probability that she takes out .
(iii) blue ball?
Two different coins are tossed simultaneously .Find the probability of getting :
(iii) atleast one tail
A girl calculates that the probability of her winning the first prize in a lottery is 0.08. If 6,000 tickets are sold, how many tickets has she bought?
