One recent study found that many Puerto Rican workers go back to Puerto Rico periodically,
a. for family reasons
b. to rest from the stress of discrimination
c. to obtain better wages
d. both a and b
d. both a and b
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Since the 1950s, the number of people locked away in mental institutions has __________
A) increased B) decreased C) remained the same D) been impossible to track
The text presents information on the central tendency and dispersion of income in the U.S. Dispersion is measured by
a. the standard deviation. b. the difference between the 20th and 80th percentiles and the difference between the 10th and 95th percentiles. c. the range. d. the Interquartile range.
Knowledge-dominated economies are symbolized by
a. graphs. b. glasses. c. smart technologies. d. standardized products
The disability rights movement first sought to ensure that the disabled have ready access to all public buildings and bathroom facilities and to draw attention to the demeaning characterization of the disabled by people like Jerry Lewis
Indicate whether the statement is true or false.