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3. Answer the questions below about z-values and probability using the standard normal distribution. (3 points total) a. Approximately what percentage of scores fall within

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3. Answer the questions below about z-values and probability using the standard normal distribution. (3 points total) a. Approximately what percentage of scores fall within 2 z-values of the mean (i.e., probability associated with scores ranging from a -2 to a +2 z-values). (1 point) b. The probability associated with z 2.7? Explain your answer. (1 point) 3

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