Mathematics, 20.10.2020 02:01, misswonderless
The distribution of passenger vehicle speeds traveling on the Interstate 5 Freeway (I-5) in California is nearly normal with a mean of 72.6 miles/hour and a standard deviation of 4.78 miles/hour (A) Slower than 128 km/hour? (1 km = 0.62 mile) (B)The speed limit on this stretch of the I-5 is 65 miles/hour. What percentage of the passenger vehicles travel above the speed limit on this stretch of the I-5? Are you surprised at the result? In other words, Is this probability unusual? Note: If probability is < 0.05 then it is unusual. (C) What speed interval should the authorities expect to find the middle 70% of passenger vehicle to travel? (D) What is the IQR of the passenger vehicle speed in Interstate 5 Freeway in California? In other words, find the cutoff value for the middle 50%. (E) How slow do the slowest 10% of the passenger vehicles travel?
Answers: 1
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The distribution of passenger vehicle speeds traveling on the Interstate 5 Freeway (I-5) in Californ...
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