The speed of cars driving past Johnson City High School, on 666 Reynolds Rd, were recorded over one school year. The speed limit on that part of Reynolds Rd is 20 mph. The mean of the speed readings was 24.19 mph, with a standard deviation of 3.56 mph. i) How many standard deviations from the mean would a car going under the speed limit be? ii) Which would be more unusual, a car travelling 34 mph or one going 10 mph? Explain. iii) The police handed out a large number of tickets to speeders. The mean number of mph over the speed limit for these speeders was 7, with a standard deviation of 2.3 mph, a maximum of 12 mph and an IQR 3.1 mph. Local law prescribes fines of $100, plus $10 per mile per hour over the 20 mph speed limit. For example, a driver convicted of going 25 mph would be fined 100+10 (5) = $150. Find the mean, maximum, standard deviation and IQR of all potential fines.

The speed of cars driving past Johnson City High School, on 666 Reynolds Rd, were recorded over one school year. The speed limit on that part of Reynolds Rd is 20 mph. The mean of the speed readings was 24.19 mph, with a standard deviation of 3.56 mph. i) How many standard deviations from the mean would a car going under the speed limit be? ii) Which would be more unusual, a car travelling 34 mph or one going 10 mph? Explain. iii) The police handed out a large number of tickets to speeders. The mean number of mph over the speed limit for these speeders was 7, with a standard deviation of 2.3 mph, a maximum of 12 mph and an IQR 3.1 mph. Local law prescribes fines of $100, plus $10 per mile per hour over the 20 mph speed limit. For example, a driver convicted of going 25 mph would be fined 100+10 (5) = $150. Find the mean, maximum, standard deviation and IQR of all potential fines.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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