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In a study of facial? behavior, people in a control group are timed for eye contact in a? 5-minute period. Their times are normally distributed with a mean of 176.0 and a standard deviation of 57.0 seconds. Use the? 68-95-99.7 rule to find the indicated quantity.

a. Find the percentage of times within 57.0 seconds of the mean of 176.0 seconds.

Reference no: EM132461889

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