Car speeds. John Beale of Stanford, CA, recorded thespeeds
Chapter 6, Problem 18(choose chapter or problem)
Car speeds. John Beale of Stanford, CA, recorded thespeeds of cars driving past his house, where the speed limitread 20 mph. The mean of 100 readings was 23.84 mph,with a standard deviation of 3.56 mph. (He actuallyrecorded every car for a two-month period. These are100 representative readings.)a) How many standard deviations from the mean woulda car going under the speed limit be?b) Which would be more unusual, a car traveling 34 mphor one going 10 mph?
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