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tylorwsimmons
tylorwsimmons
07.10.2021 • 
Mathematics

3.12 Speeding on the I-5, Part I: The distribution of passenger vehicle speeds traveling on the Interstate 5 Freeway (I-5) in California is nearly normal with a mean of 72 miles/hour and a standard deviation of 4.8 miles/hour. Use this information to answer the following questions. Round your answers to 2 decimal places. a) What percent of passenger vehicles travel slower than 80 miles/hour? .8577 % b) What percent of passenger vehicles travel between 60 and 80 miles/hour? .8375 % c) How fast do the fastest 5.5% of passenger vehicles travel? d) The speed limit on this stretch of the I-5 is 70 miles/hour. Approximate what percentage of the passenger vehicles travel above the speed limit on this stretch of the I-5. % Submit All PartsQuestion 7

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