Sadhana Bhadoriya

Ex – 14.1 Que No. 12 Q.12) A game of chance consists of spinning an arrow which comes to rest pointing at one of the numbers 1, 2, 3, 4, 5, 6, 7, 8 (see Fig. 14.5 ), and these are equally likely outcomes. What is the probability that it will point at Solution:-

Ex – 14.1 Que No. 11 Q.11) Gopi buys 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 (see Fig. 14.4). What is the probability that the fish taken out is a male fish? Solution:-

Ex – 14.1 Que No. 10 Q.10) A piggy bank contains hundred 50p coins, fifty 1 coins, twenty 2 coins and ten 5 coins. If it is equally likely that one of the coins will fall out when the bank is turned upside down, what is the probability that the coin (i) will be a

Ex – 14.1 Que No. 9 Q.9) A box contains 5 red marbles, 8 white marbles and 4 green marbles. One marble is taken out of the box at random. What is the probability that the marble taken out will be Solution:-

Ex – 14.1 Que No. 8 Q.8) A bag contains 3 red balls and 5 black balls. A ball is drawn at random from the bag.What is the probability that the ball drawn is (i) red ? (ii) not red? Solution:-

Ex – 14.1 Que No. 7 Q.7) It is given that in a group of 3 students, the probability of 2 students not having the same birthday is 0.992. What is the probability that the 2 students have the same birthday?. Solution:-

Ex – 14.1 Que No. 6 Q.6) A bag contains lemon flavoured candies only. Malini takes out one candy without looking into the bag. What is the probability that she takes out. Solution:-

Ex – 14.1 Que No. 5 Q.5) If P(E) = 0.05, what is the probability of ‘not E’? Solution:-

Ex – 14.1 Que No. 4 Q.4) Which of the following cannot be the probability of an event? Solution:-

Ex – 14.1 Que No. 3 Q.1) The distribution below gives the weights of 30 students of a class. Find the median weight of the students. Solution:-