Core (Statistics & Probability)
Examples, solutions, 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
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
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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