Question: 6 . Pedestrian walking speed is normally distributed with a mean of 4 . 0 ft / s and a standard deviation of 0 .

6. Pedestrian walking speed is normally distributed with a mean of 4.0 ft/s and a standard deviation of 0.5 ft/s. A crosswalk traverses four lanes of traffic and each lane is 11 ft wide. If the duration of the walk indication (both the walk phase and the countdown phase) is 11 sec, will most pedestrians be able to safely cross the four lanes of traffic during the walk indication? Show calculations to support your answer

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