As N increases, the binomial distribution _________
a. becomes skewed
b. becomes more normally distributed
c. is easier to use
d. changes from a discrete to a continuous distribution
B
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McPhail’s method for classifying the behavior of people in crowds into such categories as gesticulation and vocalization indicates that
a. crowds tend to engage in odd and unusual behaviors. b. large groups of people in public places are best studied through survey methods. c. Le Bon’s contagion theory provides the best explanation for crowd formation. d. most crowd behavior can be classified as task oriented or relationship oriented. e. the behaviors performed by people in crowds can be classified into a small number of basic categories.
Mia continued to drink heavily with her friends throughout her pregnancy. Her son, now four, has physical abnormalities, including an underdeveloped jaw and thin upper lip, and cognitive and behavioral problems. He most likely has ____.?
a. ?Down syndrome b. ?fetal alcohol syndrome c. ?hydrocephalus d. ?spina bifida
When the criterion validity coefficient is ____, and the selection ratio is ____, a test will have the most utility in selecting successful employees
a. large / large b. large / small c. small / small d. small / large
ADHD has been treated with drugs that increase ______ by ______ reuptake.
A. dopamine; blocking B. dopamine; stimulating C. GABA; blocking D. GABA; stimulating