Question: The solution must be step by step not short, because this is my reference and document please write neatly and there are no scribbles that

The solution must be step by step not short, because this is my reference and document please write neatly and there are no scribbles that make me dizzy

1. The time it takes to complete a final exam on a particular lesson at a college spreads normally (Normal distribution) with an average of 80 minutes and a standard deviation of 10 minutes.. a. What is the probability (probability) of completing the final exam question in 60 minutes or less = P(X s 60) ? b. What is the probability (probability) of completing the exam between 60 to 75 minutes = P(60

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