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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 185.0 Seconds And A Standard Deviation Of 56.0 Seconds. Use The 68-95-99.7 Rule To Find The Indicated Quantity. - Math Discussion

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 185.0 seconds and a standard deviation of 56.0 seconds. Use the 68-95-99.7 rule to find the indicated quantity.