For a set of scores on an exam, the standard deviation is calculated by
A) adding up all scores and dividing this sum by the number of scores
B) taking the square root of the variance of the scores
C) multiplying the mean of the scores with the variance of the scores
D) dividing the variance of the scores by 2
B
Psychology
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a. foreign proteins b. viruses c. hormones d. bacteria e. cancerous body cells
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What is the mean of this set of scores? 4, 6, 7, 7, 9, 3, 10, 4, 2, 9
a. 4 b. 6.5 c. 6.1 d. 7
Psychology
Social categories are usually hierarchical and neat
Indicate whether this statement is true or false.
Psychology
Information in the visual world that specifies how that information can be used is known as a(n) ______.
A. action potential B. motion aftereffect C. affordance D. Reichardt detector
Psychology