If one flips 5 unbiased coins once, what is the probability of getting exactly 3 heads?
a. 0.6000 c. 0.4687
b. 0.3125 d. 0.0312
B
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Reba wants to examine the TV-viewing habits of 18- to 25-year-old males in the United States. As it is quite impossible to include all males of this age group in her study, she selects a smaller group of 18- to 25-year old males to survey. The males included in her study are called a(n)
a. population. b. sample. c. control group. d. age grade.
The National Center for Infants, Toddlers, and Families has identified all of the following as necessary to ensuring high-quality child care except
A) providing responsive caregiving. B) helping all children assimilate proper English language skills. C) meeting individual needs in the context of the larger group. D) health and safety.
The view that prejudice is an inevitable consequence of competition among groups for resources or power is known as
a. social dominance theory b. category-based processing c. aversive racism d. realistic group conflict theory
Which of the following statements about chromatic opponency is incorrect?
A. Midget ganglion cells show red-green opponency. B. Bistratified ganglion cells show blue-yellow opponency. C. Parasol gnaglion cells do not show spectral opponency. D. Spectral opponency is restricted to peripheral vision.