In a normal distribution,approximately _____ of all scores fall between standard scores of -1 and +1.

Name: In a normal distribution,approximately _____ of all scores fall between standard scores of -1 and +1.
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Question

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The Empirical Rule states that approximately 68% of all scores fall within one standard deviation (which corresponds to standard scores of -1 and +1 in a normal distribution) of the mean of the distribution. Therefore, choice B (68%) is the best answer.

In a Normal Distribution,approximately _____ of All Scores Fall Between