Close to ________ of children in the United States grow up either in abject poverty or in low-income families.
A. 15%
B. 20%
C. 40%
D. 30%
Answer: C
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Illustrative of functional fixedness, people are more likely to solve the candle problem if
A. fewer tacks are provided. B. pliers are also presented. C. the box is empty. D. the candle is already lit.
You are asked the following tricky question, "A farmer had 19 sheep. All but 9 died. How many sheep did the farmer have left?" To answer this question, you must
a. utilize a mental set. b. define the problem narrowly. c. actively challenge your assumptions. d. look for analogies within the problem.
What is the current median age at which American men first marry?
A) 21.7 B) 23.6 C) 25.8 D) 27.1
One of the primary costs of evolving large brains is
A. large brains require a lot of energy and nutrients relative to their size. B. they are more subject to mutations than small brains, slowing evolution. C. they are associated with population increases, which increases evolutionary pressures. D. they evolved late in evolutionary history.