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December 19, 2014

December 19, 2014

Posted by **Lauren** on Wednesday, November 18, 2009 at 11:20pm.

Jack is taking a four item true/false test. He decides to flip a coin to answer. What is the probablility he gets a perfect score? What is the probablility on a 10 question test?

- college math -
**PsyDAG**, Wednesday, November 18, 2009 at 11:37pmThe probability of getting any one true-false item correct by chance = 1/2 = .5. To get the probability of all events occurring, you need to multiply the probability of the individual events.

four items = .5^4

10 items = .5^10

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