Videos and lessons to help High School students learn how to
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.
- Understand conditional probability and how it applies to
- Use p(A|B) = p(A ∩ B)/p(B) to calculate conditional
- Understand that events A and B are independent if and only if
they satisfy p(A|B) = p(A) or satisfy p(B|A) = p(B).
- Apply the definition of independence to a variety of chance
Common Core: HSS-CP.A.3
Core (Statistics & Probability)
This video explains how to determine conditional probability.
How to Calculate Conditional Probability
Tutorial on how to calculate conditional probability for two events
P(A), P(B), P(B|A) with two examples.
Conditional Probability: Basic Definition
This is a sample video from my tutorial course on the Rules for
Reasoning with Probabilities. In this video I introduce the basic
definition of conditional probability as it's defined in standard
Basic Conditional Probability Example
This video looks at a basic conditional probability example.
Conditional probability is simply calculating a probability on the
'condition' that something already happened. In this case, the
condition we assume is that John already selected a science card
when selecting the next card.
Conditional Probability, Multiplication Rule, and Independence.
Conditional probability and independence---examples.
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You can use the Mathway widget below to practice Statistics or other math topics. Try the given examples, or type in your own problem. Then click "Answer" to check your answer.