45 defective pens are accidentally mixed with 40 good ones. It is not possible to just look at a pen and tell whether it is defective or not. One pen is taken out at random. What is the probability that it is a defective pen?
Karmjeet and Sham are friends. What is the probability that both will have different birthdays, ignoring a leap year?
Two fair dice are tossed simultaneously. What is the probability of getting two numbers whose product is odd?
What is the probability of getting a sum of 7 from two throws of a dice?
A box contains 2 navy, 4 red and 6 sky blue marbles. What is the probability of drawing a marble that is not sky blue if 2 marbles are drawn out randomly?
This Blog Post/Article "Probability Quiz Set 001" by Parveen (Hoven) is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Updated on 2017-04-07.