Question: Do you have an answer for this question : The food and drug administration (FDA) approves 20% of drugs submitted for its approval. In a

Do you have an answer for this question :

The food and drug administration (FDA) approves 20% of drugs submitted for its approval. In a random sample of 15 drugs submitted for the FDA's approval.

Find the probability that the number of drugs that are approved is at most three.

What is the mean and the standard deviation of the number of drugs submitted for the FDA's approval?

If the sample size of drugs is changed to be 30 drugs, what is the probability that the number of drugs that are approved is between 15 and 25 drugs?

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