If behavior problem scores are roughly normally distributed in the population, a sample of behavior problem scores will

a. be normally distributed with any size sample.
b. more closely resemble a normal distribution as the sample size increases.
c. have a mean of 0 and a standard deviation of 1.
d. be negatively skewed.

B

Psychology

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Which of the following refers to a physiological state that usually triggers a state of motivational arousal?

a. need b. homeostasis c. instinct d. drive e. incentive

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The major commercial species of Nicotiana that is grown for tobacco products is

A. Nicotiana rustica. B. Nicotiana indica. C. Nicotiana tobacum. D. Nicotiana sinensis.

Psychology