Find the probability of getting atmost two heads or atleast two tails in a toss of three coins.

4

(a)

In a large metropolitan area, the probabilities are 0.87,0.36,0.30 that a family (randomly chosen for a sample survey) owns a colour television set, a black and white television set, or both kinds of sets. What is the probability that a family owns either anyone or both kinds of sets?

4

(a)

If \(\frac { 5 }{ 14 } \)is the probability of occurrence of an event, find the odd against its occurrence.

4

(a)

A bag contains 6 discs of which 4 red,3 are blue and 2 are yellow.The discs are similar in shape and size.A disc is drawn at random from the bag.Calculate the probability that it will be
either red or blue

4

(a)

In a drawing competition, the odds in favour of competitors A, B, C and D are 1:2,1:3,1:4 and 1:5, respectively. Find the probability that one of them wins the competition.

4

(a)

One card is drawn from a well-shuffled deck of 52 cards.Calculate the probability that the card will be
a black card

4

(a)

One card is drawn from a well-shuffled deck of 52 cards.Calculate the probability that the card will be
not an ace

4

(a)

In a single throw of three dice, find the probability of getting a total of 17 or 18

4

(a)

A coin is tossed and a die is thrown. Find the probability that the outcomes will be a tail or a number greater than 3.

4

(a)

Two dice are thrown find odds in favour of getting the sum 5.

4

(a)

Find the probability that, when a hand of 5 cards is drawn from a well-shuffled deck of 52 cards, it contains 3 queens.

4

(a)

If the odds against winning a race of three horses are respectively 3:1, 4:1 and 5:1, then what is the probability that on of these horses will win?

4

(a)

A card is selected from a pack of 52 cards.Find the probability that the card is an ace of club.

4

(a)

A die is thrown, find the probability of getting an even number.

4

(a)

20 cards are numbered from 1 to 20.In those of them, one card is drawn at random.What is the probability that the number on the card drawn is an odd number?

4

(a)