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Studentsenrolledinaparticularcoursearepreparingforanexamthatwillconsistof25multiplechoicequestions,eachofwhichhasfivepossibleanswers. Whatistheprobabilityofastudentcorrectlyansweringnolessthan22questionsbasedsolelyuponguessingtheanswertoeachquestion? Whatistheprobabilityofastudentcorrectlyansweringnomorethan18questionsbasedsolelyuponguessingtheanswertoeachquestion? HOW DO I DO THIS ON EXCEL?

Studentsenrolledinaparticularcoursearepreparingforanexamthatwillconsistof25multiplechoicequestions,eachofwhichhasfivepossibleanswers.

Whatistheprobabilityofastudentcorrectlyansweringnolessthan22questionsbasedsolelyuponguessingtheanswertoeachquestion?
Whatistheprobabilityofastudentcorrectlyansweringnomorethan18questionsbasedsolelyuponguessingtheanswertoeachquestion?

HOW DO I DO THIS ON EXCEL?

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