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What is the proportion of cars exceeding the limit

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Reference no: EM132464316

Problem: Traffic engineers observed the traffic flow at I-200 has a mean speed of 70 miles, with an SD=10 miles. The posted speed limit is 65 miles, what is the proportion of cars exceeding the limit of 65 miles. (hint: It is reasonable to assume that speed is normally distributed with mean=70, and variance =100)

Reference no: EM132464316

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