Probability Rules

A preview of "Probability Rules"

Knowing the probability rules is key for computing and relating probabilities. These quizzes explore the fundamental rules which are applied throughout the rest of the course:

  • Rule of Sum (for exclusive events): \[P(A\text{ or }B) = P(A) +P(B)\]
  • Rule of Product (for independent events): \[P(A\text{ and }B) = P(A)\cdot P(B)\]
  • Rule of Complement: \[P(\text{not }A) = 1-P(A)\]
  • Principle of Inclusion-Exclusion: \[P(A\text{ or }B) = P(A)+P(B)-P(A\text{ and }B)\]

By the end of the chapter, you'll be able to apply the rules in combination to solve problems like this one:

Assuming that rain across the days is independent, what is the probability that it will rain at least once in these five days?

Master the problem solving skills of Probability.

Join Brilliant

Problem Loading...

Note Loading...

Set Loading...