Counting Possible Outcomes

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Basic Probability is one of the most missed topics on the #GED test. Brian continues his explanation of the basic principles of probability with Counting Possible Outcomes and gives you a boost in your probability of passing the GED®.

For additional practice:
Khan Academy Probability Video:

Math Goodies Probability Worksheets:

Math Goodies Probability Examples:

Tutor Vista Counting Outcomes:
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Hey, thanks for the video. I think there is an error in the solution to the last problem. The possible combinations of 8 students in 4 chairs is only 70. However, if the arrangement matters (Same students but different order in the chairs) then there are 1680 permutations. To summarize, 70 combinations of 8 students in 4 chairs. Then 24 ways to arrange those 4 students in those 4 chairs (4 * 3 * 2 * 1), and multiply together to get 1680 ways to arrange 8 students in 4 chairs.

ericmolnar
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Thank you this helps me answering my modules.

Yana-L
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Thankyou thankyou thankyou thankyou thankyou

satyavani
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5:00 are we not counting the possibility that there is an empty chair?

Jay.Wolfe.