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Question 10: The distribution of the amount of money spent by students on textbooks in a semester...

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Basic Math

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?

Answer & Explanation Solved by verified expert
3.9 Ratings (484 Votes)
Solution10 Given in the question Mean 494 Standard deviation 39    See Answer
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