A histogram is created that presents data on the number of mistakes participants in a research study made on a memory test. The vertical axis indicates:
a. the frequency of errors made.
b. the total number of participants.
c. the gender of the participants.
d. the mean number of errors made.
Answer: A
Rationale: The vertical axis shows the frequency, the number of observations that fall within a certain category or range of scores.
Psychology
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