The amount of time devoted to studying statistics each week by students who achieve a grade of A in the course is a normally distributed random variable, with a mean of 7.5 hours and a standard deviation of 2.1 hours. Also indicate whether the event is usual or unusual A. What proportion of A students study more than 10 hours per week B. Find the probability that an A student spends between 7 and 9 hours studying C. What proportion of A students spend fewer than 3 hours studying *Please do not solve using Microsoft Excel. My professor is not teaching using excel. I would like to see the steps involved to solving the problem for my own study reference for exams.*
The amount of time devoted to studying statistics each week by students who achieve a grade of A in the course is a
A. What proportion of A students study more than 10 hours per week
B. Find the
C. What proportion of A students spend fewer than 3 hours studying
*Please do not solve using Microsoft Excel. My professor is not teaching using excel. I would like to see the steps involved to solving the problem for my own study reference for exams.*
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The amount of time devoted to preparing for a statistics examination by students is a
d) What is the
e) What is the probability that a student spends at most 18 hours studying?
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