Q12 of 36 Page 126

A bag contains 3 red, 3 white and 3 green balls. One ball is taken out of the bag at random. What is the probability that the ball drawn is -

(1) red.


(2) not red


(3) either red or white.

(1) Probability that ball drawn is red, p(R)=


p(R)=


(2) Probability that ball drawn is not red, p(N)=


p(N)=


(3) Probability that ball drawn is either red or white, p(E)=


p(E)=


More from this chapter

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10

In a game of chance, a spinning arrow comes to rest at one of the numbers 1, 2, 3, 4, 5, 6, 7, 8.

All these are equally likely outcomes.


Find the probability that it will rest at


(1) 8.


(2) an odd number.


(3) a number greater than 2.


(4) a number less than 9.


 11

There are six cards in a box, each bearing a number from 0 to 5. Find the probability of each of the following events, that a card drawn shows,

(1) a natural number.


(2) a number less than 1.


(3) a whole number.


(4) a number is greater than 5.

 13

Each card bears one letter from the word ‘mathematics’ The cards are placed on a table upside down. Find the probability that a card drawn bears the letter ‘m’.

 14

Out of 200 students from a school, 135 like Kabbaddi and the remaining students do not like the game. If one student is selected at random from all the students, find the probability that the student selected dosen't like Kabbaddi.