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Binomial There are 30 students in a math class and 20 students scored higher than 80% in the final exam. 1. What is the probability

Binomial

There are 30 students in a math class and 20 students scored higher than 80% in the final exam.

1. What is the probability that 20 students score exactly 80%?

2. What is the probability that 20 students score more than 80%?

3. What is the probability that 20 students score at most 80%?

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