A card is selected at random from a deck of 52 playing cards. The probability of it being a red face card is :
[1]
Assertion (A): The probability of selecting a number at random from the numbers 1 to 20 is 1.
Reason (R): For any event E, if $P(E)=1$, then E is called a sure event.
[1]
Two dice are thrown at the same time. Determine the probability that the difference of the numbers on the two dice is 2.
[3]
If the probability of a player winning a game is 0.79, then the probability of his losing the same game is :
[1 mark]
From the data 1, 4, 7, 9, 16, 21, 25, if all the even numbers are removed, then the probability of getting at random a prime number from the remaining is :
[1 mark]
Two dice are rolled together. The probability of getting sum of numbers on the two dice as 2, 3 or 5, is:
[1 mark]
In a pack of 52 playing cards one card is lost. From the remaining cards, a card is drawn at random. Find the probability that the drawn card is queen of heart, if the lost card is a black card.
[2 marks]
Probability of happening of an event is denoted by p and probability of non-happening of the event is denoted by q. Relation between p and q is
[1 mark]
A girl calculates that the probability of her winning the first prize in a lottery is 0.08. If 6000 tickets are sold, how many tickets has she bought?
[1 mark]
In a group of 20 people, 5 can't swim. If one person is selected at random, then the probability that he/she can swim, is
[1 mark]
A bag contains 4 red, 3 blue and 2 yellow balls. One ball is drawn at random from the bag. Find the probability that drawn ball is
(i) red
(ii) yellow.
[2 marks]