Probability is a branch of mathematics that deals with calculating the likelihood of given event’s occurrence, which is expressed as a number between 0 and 1. We usually predict about many events based on certain parameters.
E.g.: 1. Getting a head , when a coin is tossed. 2. Getting a odd number, when a die is rolled. The better we know about the parameters related to an event result then the result predicted accuracy is better.
1. When three coins are tossed simultaneously, what is the probability that one coins show tails as output?
2. When five coins are tossed simultaneously, what is the probability that at least three coins show tails as output?
3. What is the probability of having 53 tuesdays in a non-leap year?
4. What is the probability of having 53 wednesdays in a leap year?
5. A single letter is selected at random from the word "KIRAN". The probability that it is a vowel, is?
6. When an unbiased dice is rolled, what is the probability that the output is greater than 4?
7. When two dice are rolled together, what is the probability that the sum of the outputs is 9?
8. When two dice are rolled together, what is the probability that the sum of the outputs is 7 or 12?
Directions: A basket contains 4 red, 5 blue and 3 green marbles.
9. If two marbles are drawn at random, what is the probability that both are red?
A card is drawn at random from a pack of 52 cards what is the probability of getting...
1. A spade card?
2. A heart card?
3. Jack card?
4. A red face card?
