Question: If the probability is 0.1 that a person will make a mistake on his or her state income tax return, find the probability that 1.
If the probability is 0.1 that a person will make a mistake on his or her state income tax return, find the probability that 1. four totally unrelated persons each make a mistake;
2. Mr. Jones and Ms. Clark both make mistakes, and Mr. Roberts and Ms. Williams do not make a mistake.
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