SOLUTION: what is the probability of locating a respondent who scored either 70 or less or 90 or more? What is the probability of locating three respondents who scored 90 or more?

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Question 749490: what is the probability of locating a respondent who scored either 70 or less or 90 or more?
What is the probability of locating three respondents who scored 90 or more?
Answer by stanbon(75887) About Me  (Show Source):
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