Advertisements
Advertisements
प्रश्न
1000 tickets of a lottery were sold and there are 5 prizes on these tickets. If Namita has purchased one lottery ticket, what is the probability of winning a prize?
उत्तर
n(S) = 1000
n(E) = 5
P(E) = ?
P(E) = `"n(E)"/"n(S)" = 5/1000 = 0.005`.
APPEARS IN
संबंधित प्रश्न
In a simultaneous throw of a pair of dice, find the probability of getting an even number on one and a multiple of 3 on the other
What is the probability that a number selected from the numbers 1, 2, 3, ..., 15 is a multiple
of 4?
Three coins are tossed together. Write all the possible outcomes. Now, find the probability of getting all tails.
Offices in Delhi are open for five days in a week (Monday to Friday). Two employees of an office remain absent for one day in the same particular week. Find the probability that they remain absent on consecutive day.
Tickets numbered 2, 3, 4, 5, ..., 100, 101 are placed in a box and mixed thoroughly. One ticket is drawn at random from the box. Find the probability that the number on the ticket is a prime number less than 40.
1000 families with 2 children were selected randomly , and the following data were recorded :
| Number of girls in a family | 0 | 1 | 2 |
| Number of families | 333 | 392 | 275 |
Find the probability of a family , having
(iii) no girl
The chance of throwing 5 with an ordinary die is ____________.
Two dice are thrown at the same time. Find the probability of getting different numbers on both dice.
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 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 card is drawn at random from a well-shuffled pack of 52 cards. The probability that the card drawn is not an ace is ______.
