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Mathematics, 09.10.2019 05:30 ciya12

3a multiple choice exam has 4 answer choices (a, b,c, d). there are 20 questions on the exam.
assuming you guessed on every question what is the probability that you would get
a 10 correct
bat least 5 correct
c more than 15 correct
d 12 incorrect
4. if 7 unbiased coins are flipped once what is the probability of getting
a. exactly 4 heads
b. more than 4 heads
c exactly 3 tails

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3a multiple choice exam has 4 answer choices (a, b,c, d). there are 20 questions on the exam.
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