Advertisements
Advertisements
प्रश्न
A bag contains 5 red balls, 6 white balls, 7 green balls, 8 black balls. One ball is drawn at random from the bag. Find the probability that the ball drawn is white
उत्तर
Sample space (S) = 5 + 6 + 7 + 8
n(S) = 26
Let A be the event of getting a white ball
n(A) = 6
P(A) = `("n"("A"))/("n"("S"))`
P(A) = `6/26 = 3/13`
APPEARS IN
संबंधित प्रश्न
Write the sample space for tossing three coins using tree diagram
A coin is tossed thrice. What is the probability of getting two consecutive tails?
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 number greater than 500, the player wins a prize. What is the probability that the second player wins a prize if the first has won?
A bag contains 5 red balls, 6 white balls, 7 green balls, 8 black balls. One ball is drawn at random from the bag. Find the probability that the ball drawn is black or red
A bag contains 5 red balls, 6 white balls, 7 green balls, 8 black balls. One ball is drawn at random from the bag. Find the probability that the ball drawn is not white
Some boys are playing a game, in which the stone thrown by them landing in a circular region is considered as win and landing other than the circular region is considered as a loss. What is the probability to win the game? (π = 3.14)
Two customers Priya and Amuthan are visiting a particular shop in the same week (Monday to Saturday). Each is equally likely to visit the shop on any one day as on another day. What is the probability that both will visit the shop on the same day?
In a game, the entry fee is ₹ 150. The game consists of tossing a coin 3 times. Dhana bought a ticket for entry. If one or two heads show, she gets her entry fee back. If she throws 3 heads, she receives double the entry fees. Otherwise, she will lose. Find the probability that she just gets her entry fee
Which of the following is incorrect?
If a letter is chosen at random from the English alphabets {a, b, …, z}, then the probability that the letter chosen precedes x
