3.2 Probability Distribution
3.2 Probability Distribution
Here you’ll learn the definition of a probability distribution and how to determine if a probability distribution is that
of a discrete random variable. You’ll also learn how to solve problems with probability distributions and how to
create a histogram with technology.
Suppose you toss three coins. What is the probability that one of the coins would turn up heads and the other two
would turn up tails? How would you create a visual that would show all the possible values of your tosses and the
probability associated with each of these values?
Watch This
First watch this video to learn about probability distributions.
MEDIA
Click image to the left for more content.CK-12 Foundation: Chapter3ProbabilityDistributionA
Then watch this video to see some examples.
MEDIA
Click image to the left for more content.CK-12 Foundation: Chapter3ProbabilityDistributionB
Watch this video for more help.
MEDIA
Click image to the left for more content.Khan Academy Introduction to Random Variables
Guidance
When we talk about the probability of discrete random variables, we normally talk about a probability distribution.
In aprobability distribution, you may have a table, a graph, or a chart that shows you all the possible values ofX
(your variable), and the probability associated with each of these values(P(X)).