The number of degrees of freedom for the chi-square test for goodness of
fit is
A) the number of categories minus one.
B) the mean number of individuals per category, minus the number of categories.
C) the mean number of individuals per category, minus one.
D) the total number of individuals, minus the number of categories.
Answer: A
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Which of the following is true of family structures in the first English-speaking settlements in the United States?
A) Elderly grandparents always lived with their families. B) Most households were made up of extended families for long periods. C) The age difference between children was often large. D) Families generally had one or two children.
Ray and Debra are a middle-class couple with three children. Ray has a full-time job and supports the family financially. Debra stays home and takes care of the children. Ray and Debra's family meets the definition of: a. a modern family
b. affiliated kin. c. a traditional family. d. an extended family.
Which of the following is an example of quantitative research?
A. 40 in-depth interviews with residents of a suburban neighborhood B. field observations of people interacting and dancing in a nightclub C. content analysis of meme images on a popular blogging website D. 2,000 survey questionnaires that measure respondents’ drug usage habits
Heavy metals ______, thus, regardless of where they are released, they are a global problem.
a. can be contained in landfills b. are naturally occurring c. can be transported over great distances d. are ingested by animals