students that got an A= 56 41 40 39 36 36 30 25
The variance of the number of books read by students who earned an A grade is?
(Round to four decimal places as needed.)
The standard deviation of the number of books read by students who earned an A grade is?
(Round to the nearest thousandth as needed.)
students that got a B or C= 40 28 23 22 21 16
The variance of the number of books read by students who earned either a B or C grade is?
(Round to four decimal places as needed.)
The standard deviation of the number of books read by students who earned either a B or C grade is?
(Round to the nearest thousandth as needed.)
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