If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

# Statistics & Probability: Conditional Probability & the Rules of Probability237 questions10 skills

## HSS-CP.A.1

51 questions2 skills
Describe events as subsets of a sample space (the set of outcomes) using characteristics (or categories) of the outcomes, or as unions, intersections, or complements of other events (“or,” “and,” “not”).

## HSS-CP.A.2

30 questions1 skill
Understand that two events A and B are independent if the probability of A and B occurring together is the product of their probabilities, and use this characterization to determine if they are independent.

## HSS-CP.A.3

30 questions1 skill
Understand the conditional probability of A given B as P(A and B)/P(B), and interpret independence of A and B as saying that the conditional probability of A given B is the same as the probability of A, and the conditional probability of B given A is the same as the probability of B.

## HSS-CP.A.4

30 questions1 skill
Construct and interpret two-way frequency tables of data when two categories are associated with each object being classified. Use the two-way table as a sample space to decide if events are independent and to approximate conditional probabilities.

## HSS-CP.A.5

30 questions1 skill
Recognize and explain the concepts of conditional probability and independence in everyday language and everyday situations.

## HSS-CP.B.6

60 questions2 skills
Find the conditional probability of A given B as the fraction of B’s outcomes that also belong to A, and interpret the answer in terms of the model.

## HSS-CP.B.7

30 questions1 skill
Apply the Addition Rule, P(A or B) = P(A) + P(B) – P(A and B), and interpret the answer in terms of the model.

## HSS-CP.B.8

Apply the general Multiplication Rule in a uniform probability model, P(A and B) = P(A)P(B|A) = P(B)P(A|B), and interpret the answer in terms of the model.
Skills for this standard are coming soon.

## HSS-CP.B.9

66 questions4 skills
Use permutations and combinations to compute probabilities of compound events and solve problems.