Suppose that a Normal model describes fuel economy (miles per gallon) for automobiles and that a Toyota Corolla has a standardized score (z-score) of +2.2. This means that Corollas . . .
A) get 2.2 miles per gallon.
B) achieve fuel economy that is 2.2 standard deviations better than the average car.
C) get 2.2 mpg more than the average car.
D) have a standard deviation of 2.2 mpg.
E) get 2.2 times the gas mileage of the average car.
Question 2
Suppose a Normal model describes the number of pages printer ink cartridges last. If we keep track of printed pages for the 47 printers at a company's office, which must be true?
I. The page counts for those ink cartridges will be normally distributed.II. The histogram for those page counts will be symmetric.III. 95 of those page counts will be within 2 standard deviations of the mean.
A) I, II, and III B) I only C) II only D) none E) II and III
Standard Model of Elementary Particles
Heavy fuel droplets separate as they flow around an abrupt bend in an intake manifold.
A Spatial Model of Reasoning
A model for helicase action
Quality of U.S. and Japanese-made Automobiles