Question
Question 11 The distribution of the amount of money spent by students on textbooks in a semester is approximately normal in shape with a mean
Question 11
The distribution of the amount of money spent by students on textbooks in a semester is approximately normal in shape with a mean of 350 and a standard deviation of 24.
According to the standard deviation rule, approximately 95% of the students spent between $_____ and $_____ on textbooks in a semester.
Question 12
The distribution of IQ (Intelligence Quotient) is approximately normal in shape with a mean of 100 and a standard deviation of 18.
According to the standard deviation rule, ______% of people have an IQ between 82 and 118. Do not round.
Question 13
The distribution of IQ (Intelligence Quotient) is approximately normal in shape with a mean of 100 and a standard deviation of 20.
According to the standard deviation rule, only _______% of people have an IQ over 160.
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Concepts of Database Management
Authors: Philip J. Pratt, Mary Z. Last
8th edition
1285427106, 978-1285427102
