Mathematics, 25.04.2020 04:50 sarn8899
In a study investigation car speed in automobile accidents, 5000 accidents were examined and the vehicle speed at impact was recorded. Suppose the average speed at impact in the study was 42 mph with a standard deviation of 15 mph. A histogram of the data revealed that the distribution of speeds was approximately normal (symmetric bell curve).a. Approximately what percent of the vehicle speeds were less than 42 mph
Answers: 3
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