Question: A road engineer studies a rural two-lane highway and presents this histogram to the County Department of Highways. a. For how many cars was data

A road engineer studies a rural two-lane highway and presents this histogram to the County Department of Highways.
a. For how many cars was data collected?
b. What is the 85th percentile speed?
c. What speed limit would you recommend for this highway?

Speed Limit Study 28 24 20 16 0 47 49 1 53 55 37 59 61 63 1 Speed (mi/b)

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a 2 11 22 26 27 20 8 2 118 cars b Between 57 mih and 59 mih ... View full answer

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