# Probability

Exercise 3

1. List the outcomes you can see in these experiments.

(a) Spinning a wheel Answer: The List of Events is as follows: A, B, C, D

(b) Tossing two coins together

Answer: There will be following combinations of Head and Tail if two coins are tossed together:

HH, HT, TH, TT

2. When a die is thrown, list the outcomes of an event of getting

(i) (a) a prime number (b) not a prime number.

(ii) (a) a number greater than 5 (b) a number not greater than 5.

Answer: List of events when a die is thrown:

1, 2, 3, 4, 5, 6

(i) List of Prime Numbers: 2, 3, 5

(ii) List of Non-prime numbers: 1, 4, 6

(iii) List of Number >5: 6

(iv) List of Number Not greater than 5: 1, 2, 3, 4, 5

3. Find the.

(a) Probability of the pointer stopping on D in (Question 1-(a))?

Answer: Total number of events = 5

No. of favourable outcome = 1

So, probability of favourable outcome = (b) Probability of getting an ace from a well shuffled deck of 52 playing cards?

Answer: Total Number of events = 52

Number of Favourable outcomes = 4 (because there are 4 aces in a pack of cards)

Probability of favourable outcome: (c) Probability of getting a red candies. (See figure below) Answer: Total number of events = 7

Number of Favourable outcomes = 4

Probability of favourable outcomes =

== 4. Numbers 1 to 10 are written on ten separate slips (one number on one slip), kept in a box and mixed well. One slip is chosen from the box without looking into it. What is the probability of .

(i) getting a number 6?

(ii) getting a number less than 6?

(iii) getting a number greater than 6?

(iv) getting a 1-digit number?

Answer: Total number of events = 10

Number of favourable events for getting number 6 = 1 5. If you have a spinning wheel with 3 green sectors, 1 blue sector and 1 red sector, what is the probability of getting a green sector? What is the probability of getting a non blue sector? Answer: Total number of events = 5 6. Find the probabilities of the events given in Question Probability will be available online in PDF book form soon. The solutions are absolutely Free. Soon you will be able to download the solutions.