A frequency distribution represents _____, and a frequency polygon represents _____
a. organizing data using a table; organizing data using a bar graph
b. organizing data using a table; organizing data using a line graph
c. organizing data using a line graph; organizing data using a histogram
d. organizing data using a bar graph; organizing data using a line graph
b
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How does caffeine affect human task performance?
a. It increases performance. b. It decreases performance. c. It increases performance in some areas and decreases it in others. d. Caffeine does not affect performance.
When we draw conclusions about a population based on data collected from a sample, we are using:
a. the null hypothesis b. the alternative hypothesis. c. inferential statistics. d. none of the other alternatives is correct.
Symptoms that occur following a concussion
A. are only seen when subdural bleeding has occurred. B. are always seen. C. occur in some but not all cases of open head injury. D. occur in some but not all cases of concussion.
The typical person conformed on about ___ of the trials in Asch’s experiment.
a. 1 in 20 b. one-third c. two-thirds d. nearly all