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More Lessons for Grade 11

Math Worksheets

Examples, videos, worksheets, solutions, and activities to help students learn about conditional probability.

How to determine conditional probability using a tree diagram or a table?

**Conditional Probability**

This video explains how to determine conditional probability.
**Conditional Probability**

Brief introduction to Conditional Probability

What is the probability of an event A given that event B has occurred? We call this conditional probability, and it is governed by the formula that P(A|B) which reads "probability of A given B" is equal to the P(A intersect B)/P(B).

**Conditional Probability Tree Diagram**

Example:

Assume that 75% of the AP Stats students studied for the test. If 40% of those who studied got an A, but only 10% of those who don't study get an A. What is the probability that someone who gets an A actually studied for the test?
**Conditional Probability 6x6 Table**

More Lessons for Grade 11

Math Worksheets

Examples, videos, worksheets, solutions, and activities to help students learn about conditional probability.

How to determine conditional probability using a tree diagram or a table?

This video explains how to determine conditional probability.

Brief introduction to Conditional Probability

What is the probability of an event A given that event B has occurred? We call this conditional probability, and it is governed by the formula that P(A|B) which reads "probability of A given B" is equal to the P(A intersect B)/P(B).

Example:

Assume that 75% of the AP Stats students studied for the test. If 40% of those who studied got an A, but only 10% of those who don't study get an A. What is the probability that someone who gets an A actually studied for the test?

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