SOLUTION: When Jackson runs the 400 meter dash his finishing times are normally distributed with a mean of 69 seconds and a standard deviation of 1 second. Using the empirical rule, what per

SOLUTION: When Jackson runs the 400 meter dash his finishing times are normally distributed with a mean of 69 seconds and a standard deviation of 1 second. Using the empirical rule, what per

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Question 1142072: When Jackson runs the 400 meter dash his finishing times are normally distributed with a mean of 69 seconds and a standard deviation of 1 second. Using the empirical rule, what percentage of races will his finishing time be between 68 and 70 seconds?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
68 is 1 sd below the mean
70 is 1 sd above the mean
68% of all races will have times between those numbers.
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