A graph showing the differences in frequencies or percentages among the categories of an interval-ratio variable where the categories are displayed as contiguous bars with width proportional to the width of the category and height proportional to the frequency or percentage of that category is called a
A. bar graph.
B. pie chart.
C. frequency polygon.
D. histogram.
Answer: D
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Ones that seek to avoid participating in research Ones that are less visible to researchers Ones that should only be included in maximum heterogeneity samples Ones that tend to dominate convenience samples
A researcher asks himself whether his results apply only to the people he studied or to the whole world. This researcher is questioning the _____ of his research
a. reliability b. validity c. generalizability d. replication
After World War II, the United States maintained tense relations with the Soviet Union in a__________.
A. cold war B. stalemate C. political standoff D. war
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A. The vast majority of people in the United States believe that global warming is a serious problem. B. Companies with emissions problems are relocating to countries with less stringent environmental standards. C. Multinational corporations are beginning to take advantage of the resources present in developing nations. D. People, countries, and corporations are beginning to take steps to bring about positive social change.