Easy Tutorial
For Competitive Exams

Consider the example of finding the probability of selecting a black card or a 6 from a deck of 52 cards.

5/9
6/7
5/13
7/13
Explanation:

We need to find out P(B or 6)
Probability of selecting a black card = 26/52
Probability of selecting a 6 = 4/52
Probability of selecting both a black card and a 6 = 2/52
P(B or 6)= P(B) + P(6) – P(B and 6)
= 26/52 + 4/52 – 2/52
= 28/52
= 7/13.

Additional Questions

In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?

Answer

A card is randomly drawn from a deck of 52 cards. What is the probability getting either a King or a Diamond?

Answer

A letter is chosen at random from the word ASSASSINATION. What is the probability that it is a vowel?

Answer

One card is drawn at random from a pack of 52 cards. What is the probability that the card drawn is a face card Jack, Queen and King only?

Answer

Two cards are drawn together from a pack of 52 cards. The probability that one is a spade and one is a heart, is:

Answer

What is the probability of the occurrence of a number that is odd or less than 5 when a fair die is rolled.

Answer

A box contains 4 chocobars and 4 ice creams. Tom eats 3 of them, by randomly choosing. What is the probability of choosing 2 chocobars and 1 icecream?

Answer

When two dice are rolled, find the probability of getting a greater number on the first die than the one on the second, given that the sum should equal 8.

Answer

What is the probability of getting a 2 or a 5 when a die is rolled?

Answer

Consider the example of finding the probability of selecting a black card or a 6 from a deck of 52 cards.

Answer
Share with Friends
Privacy Copyright Contact Us