Videos and lessons to help High School students learn how to
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.

*For example, collect data from a random sample of students in
your school on their favorite subject among math, science, and
English. Estimate the probability that a randomly selected
student from your school will favor science given that the
student is in tenth grade. Do the same for other subjects and
compare the results.
*

- Model real-life data using two-way frequency tables.
- Recognize that the conditional probability, p(A|B), represents the joint probability for A and B divided by the marginal probability of B.
- Use p(A|B) = p(A ∩ B)/p(B) to calculate conditional probabilities from a two-way frequency table.
- Apply the definition of independence to a variety of chance events as represented by a two-way frequency table.

Common Core: HSS-CP.A.4

Related Topics:

Common
Core (Statistics & Probability)

Common Core
for Mathematics

Two-way Tables: Probability

Probabilities using two-way tables.

Two way table probability.

Two Way Tables and Probability.

Find Conditional Probability Using a Table

This video explains two ways to determine conditional probability using a table.

Conditional Probability with Tables.

Conditional Probability Using a Table

This is how to compute conditional probability (the probability of A given B) using information from a table.

Two-way Probability Tables.

Two-way tables are a way to organize data in statistics. Two tables display the interaction between two events, The table is general to provide more flexibility into the example. The video discusses the parts of a two-way table, some notation and different probabilistic representation.

Find Probability From a Two-Way Table.

This video is a tutorial on how to find probabilities from a two-way table. We find the probability of a single event and the union and intersection of two events.

Two way tables and probability.

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