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To get an A grade on the test, you need a total score of more than 16 points. One of the students knows the correct answer to 6 of the 20 questions. The rest she guesses at random by tossing a coin (one toss per question, as in 4B). What is the chance that she gets an A grade on the test?

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A die has one red face, two blue faces, and three green faces. It is rolled 5 times. Find the chance that the red face appears on one of the rolls and the remaining rolls are green.
1.) This probability can be modeled by \[14 nCr 10 (.5)^{10}(.5)^{4}\] which equals roughly 6.11%. 2.) This probability can be modeled by 1/6 * 1/2 * 1/2* 1/2 * 1/2 which equals 1/96 or 1.04% Hope that helps

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