## A box contains 5 red, 8 blue and 3 green pens. Rutuja wants to pick a pen at random. What is the probability that the pen is blue?

Solution:Probability that Rutuja picks blue pen, p(B) =p(B) = 8/16 = ½

## A balloon vendor has 2 red, 3 blue and 4 green balloons. He wants to choose one of them at random to give it to Pranali. What is the probability of the event that Pranali gets,

(1) Probability that Pranali gets a red balloon, p(R) = p(V) = 4/9 (2) Probability that Pranali gets a blue balloon, p(B) = p(B) = 1/3 (3) Probability that Pranali gets a green balloon, p(G) = p(G) = 4/9

## Joseph kept 26 cards in a cap, bearing one English alphabet on each card. One card is drawn at random. What is the probability that the card drawn is a vowel card?

Given one card is drawn at random. Probability of the selection that the card drawn is a vowel card, p(V) = p(V) = 5/26

## In a hockey team there are 6 defenders, 4 offenders and 1 goalee. Out of these, one player is to be selected randomly as a captain. Find the probability of the selection that –

(1) The goalee will be selected. Solution:Probability of the selection that the goalee will be selected, p(G) = Therefore, p(G)= 1/11 (2) A defender will be selected. Solution:Probability of the selection that the goalee will be selected, p(D) = p(D) = 6/11

## Basketball players John, Vasim, Akash were practising the ball drop in the basket. The probabilities of success for John, Vasim and Akash are 4/5 0.83 and 58% respectively. Who had the greatest probability of success?

Given the probabilities of success for John, Vasim and Akash are 4/5 0.83 and 58% respectively.Probability of success for John = 4/5 = 0.8Probability of success for Vasim = 0.83Probability of success for Akash = 0.58Therefore, probability of success is highest for = Vasim

## Choose the correct alternative answer for each of the following question.

(1) Which number cannot represent a probability?A. 2/3B. 1.5C. 15%D. 0.7 Solution:B. 1.5Explanation:As probability of any event lies between 0 and 1, the answer is option B = 1.5, which is greater than 1. (2) A die is rolled. What is the probability that the number appearing on upper face is less than 3?A. 1/6B. […]