Q7 of 53 Page 15

Suppose we throw a die once.

(i) What is the probability of getting a number greater than 4?


(ii) What is the probability of getting a number less than or equal to 4?

(i) Outcomes (X) = 1,2,3,4,5,6


In a dice throw number greater than 4 are 5,6 So


so total number of favorable outcomes = 2


So P(X>4) =


(ii) Outcomes (X) = 1,2,3,4,5,6


Number less than or equal to 4 are 1,2,3,4


so total number of favorable outcomes = 4


P(X) =


More from this chapter

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5

In a simultaneous throw of two coins, find the probability of getting

(i) two heads


(ii) exactly one head


(iii) no tail


(iv) at least one tail

 6

A bag contains a red ball, a blue ball and a yellow ball, all the balls being of the same size. Kritika takes out a ball from the bag without looking into it. What is the probability that she takes out the

(i) yellow ball? (ii) red ball? (iii) blue ball?

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

(i) be an ace,


(ii) not be an ace

 9

In a throw of a fair die, find the probability of getting

(i) the number 5


(ii) the number 3 or 4


(iii) a prime number


(iv) a number greater than 4


(v) a number greater than 6


(vi) a number less than 6