http://www.ck12.org Chapter 1. Independent and Dependent Events
1.3 Dependent Events and Sample Spaces
Here you’ll learn the definition and the notation for dependent events and use the Multiplication Rule to solve for
probabilities of dependent events in finite sample spaces.
If you have six blue scarves in your closet and two red scarves, what is the probability that you’ll pick a red scarf
if you choose one without looking? Once you’ve taken the first scarf out of your closet and you pick a second one
without looking what is the probability that you’ll pick a blue scarf? Are these events independent or dependent?
Watch This
First watch this video to learn about dependent events.
MEDIA
Click image to the left for more content.CK-12 Foundation: Chapter1DependentEventsandSampleSpacesA
Then watch this video to see some examples.
MEDIA
Click image to the left for more content.CK-12 Foundation: Chapter1DependentEventsandSampleSpacesB
Watch this video for more help.
MEDIA
Click image to the left for more content.Khan Academy Probability of Dependent Events
Guidance
For 2 events to be dependent, the probability of the second event is dependent on the probability of the first event.
In English, remember, the term dependent means to be unable to do without. This is similar to the mathematical
definition ofdependent events, where the probability of the second event occurring is affected by the first event
occurring.