Probability II


Welcome to class! 

In today’s class, we will be talking more about probability. Enjoy the class!

Probability II

Probability |

Mutually Exclusive Event

Mutually exclusive events are events which cannot together at the same time. One event will pave way for the other, in such a case the separate probability are added together probabilities are added to give the combined probability.

Additional Law of Probability

If event A, B, C…. are mutually exclusive, the probability of A or B or C or…. Happening is the sum of their individual probabilities.

P(A) + P(B) + P(C) + ……..

Note: use the addition law to solve problems that contain the word or either/or.

Worked Examples

A bag contains 3 red balls, 4 blues balls 5 white balls and 6 black balls. A ball is picked at

Random, what is the probability that it is either:

  • Red or blue
  • Blue or black
  • Red, white or blue
  • Blue, white or black
  • Neither red nor

We hope you enjoyed the class.

Should you have any further question, feel free to ask in the comment section below and trust us to respond as soon as possible.

For more class notes, homework help, exam practice, download our App HERE

Join Telegram Community for exclusive content and support HERE

Leave a Reply

Your email address will not be published. Required fields are marked *

Don`t copy text!