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Statistics Resources

The average size (in square feet) of homes built in the United States in the fourth quarter of 2008 was 2,343. Assume the variable is normally distributed and the standard deviation is 152 square...

An IQ test has a mean of 100 and a standard deviation of 15. The test scores are normally distributed. Find the percentage of people who will score below 93. Give your answer as a percent rounded...

The average time it takes college freshmen to complete the Mason Basic Reasoning Test is 24.6 minutes. The standard deviation is 5.8 minutes. Assume the variable is normally distributed. Find the...

The mean consumption of beef at the turn of the century was 70 pounds per person per year in the US.  A sample of 32 people taken this year yielded the following data, in pounds, on last years...

Match the linear correlation coefficient to the scatter diagram. The scales on the x- and y- axes are the same for each diagram. ( a) r = - 0.969 ( b) r = - 0.049 ( c) r = - 1 ( d) r = - 0.992 Response...

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