Question 10:
The distribution of the amount of money spent by students ontextbooks in a semester is approximately normal in shape with amean of 494 and a standard deviation of 39.
According to the standard deviation rule, approximately68% of the students spent between $_____ and $ ______ on textbooksin a semester.
Question 11:
The distribution of IQ (Intelligence Quotient) is approximatelynormal in shape with a mean of 100 and a standard deviation of16.
According to the standard deviation rule, _____ % ofpeople have an IQ between 52 and 148. Do not round.
Question 12:
The distribution of IQ (Intelligence Quotient) is approximatelynormal in shape with a mean of 100 and a standard deviation of19.
According to the standard deviation rule, only______ % of people have an IQ over 157.
Question 13:
The distribution of the amount of money spent by students ontextbooks in a semester is approximately normal in shape with amean of: ?= 429 and a standard deviation of: ?= 23.
According to the standard deviation rule,almost 16% of the students spent more than what amount of money ontextbooks in a semester?
