What braking distance of a sedan represents the first quartile? On a dry surface, the braking distances

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What braking distance of a sedan represents the first quartile?

Braking Distance of a Sedan u = 132 ft O = 4.53 ft 115 120 125 130 135 140 145 Braking distance (in feet)


On a dry surface, the braking distances (in feet), from 60 miles per hour to a complete stop, of a sedan can be approximated by a normal distribution, as shown in the figure at the left.

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