Advertisements
Advertisements
प्रश्न
A bag contains cards which are numbered from 2 to 90. A card is drawn at random from the bag. Find the probability that it bears a number which is a perfect square
उत्तर
Total no. of possible outcomes = 89 {2, 3, 4, …., 90}
E ⟶ event of getting a no. which is perfect square
No. favourable outcomes = 8 {4, 9, 16, 25, 36, 49, 64, 81}
P(E) =`"No.of favorable outcomes"/"Total no.of possible outcomes"`
P(E) =8/89
संबंधित प्रश्न
Suppose you drop a die at random on the rectangular region shown in the given figure. What is the probability that it will land inside the circle with diameter 1m?
A box contains 90 discs which are numbered from 1 to 90. If one disc is drawn at random from the box, find the probability that it bears a number divisible by 5.
A box contains loo red cards, 200 yellow cards and 50 blue cards. If a card is drawn at random from the box, then find the probability that it will be not a yellow card
A card is drawn from a pack of well - shuffled 52 playing cards . Find the probability that the card drawn is
(iii) a king
In a cricket match a batsman hits a boundary 6 times out of 30 balls he plays. Find the probability that he did not hit the boundary?
A single die is rolled. The probability of getting 1 or an even number is ____________.
All the jacks, queens and kings are removed from a deck of 52 playing cards. The remaining cards are well shuffled and then one card is drawn at random. Giving ace a value 1 similar value for other cards, find the probability that the card has a value 7
A jar contains 24 marbles, some are green and others are blue. If a marble is drawn at random from the jar, the probability that it is green is `2/3` Find the number of blue balls in the jar.
A bag contains 5 pink, 8 blue and 7 yellow balls. One ball is drawn at random from the bag. What is the probability of getting neither a blue nor a pink ball?
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 ______.
