Gopibuys a fish from a shop for his aquarium. The shopkeeper takes out one fish at random from a tank containing 5 male fish and 8 female fish.
What is the probability that the fish taken out is a male fish?
(i) 8?
(ii) an odd number?
(iii) a number greater than 2?
(iv) a number less than 9?
A die is thrown once, find the probability of getting
(i) a prime number.
(ii) a number lying between 2 and 6.
(iii) an odd number.
If we throw a die once, then possible outcomes (s) are
S = {1, 2, 3, 4, 5, 6}
⇒ n( S) = 6
(i) Let E be the favourable outcomes of getting a prime number then
E = {2, 3, 5} n(E) = 3
Therefore, P(E) =
(ii) Let F be the favourable outcomes of getting a number lying between 2 and 6, then
F = {3, 4, 5} n(F) = 3
Therefore, P(F) =
(iii) Let G be the favourable outcomes of getting an odd number, then
G = {1, 3, 5} n(G) = 3
Therefore, P(G) =
One card is drawn from a well-shuffled deck of 52 cards. Find the probability of getting
(i) a king of red colour.
One card is drawn from a well-shuffled deck of 52 cards. Find the probability of getting
a face card.
One card is drawn from a well-shuffled deck of 52 cards. Find the probability of getting
a red face card.
One card is drawn from a well-shuffled deck of 52 cards. Find the probability of getting
the Jack of hearts.
One card is drawn from a well-shuffled deck of 52 cards. Find the probability of getting
a spade
One card is drawn from a well-shuffled deck of 52 cards. Find the probability of getting
the queen of diamonds.
Five cards - the ten, jack, queen, king and ace of diamonds are well-shuffled with their face down wards. One card is then picked up at random.
(i) What is the probability that the card is a queen?