Critical Reasoning (CR) | Re: Susan read in her local paper that the average (arithmetic mean)

­Susan read in her local paper that the average (arithmetic mean) income in her community last year was $38,000. She worked very hard to make $36,000 last year and was upset that she earned less than the majority of the earners in her community.

Which of the following, if true, most calls into question Susan’s belief that she earned less than the majority of the earners in her community?

(A) The standard deviation of earnings in her community was greater than $2,000.

(B) The mean earnings in the community were $3,000 greater than the median earnings.

(C) The mean earnings in the community were $1,000 greater than the median earnings.

(D) Doctors in Susan's community had an average income over $200,000.

(E) The average income of $38,000 is calculated from the incomes of both full- and part-timeworkers.

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