Suppose the mean is 26 and a variance of 4 years is squared. What interval includes about 95% of the workers?

Question by : Suppose the mean is 26 and a variance of 4 years is squared. What interval includes about 95% of the workers?
Suppose the length of time to onset of lung cancer in asbestos workers is approximately normally distributed with a mean of 26 years and a variance of 4 years is squared. What interval of onset times includes about 95% of the workers? Approximate using empirical rule.


Best answer:
Answer by gooseknowsapproximately 95% will lie within 2 standard deviations from the

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