Estimate a range of values centered about the mean in which, Ask an Expert

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Statistical abstracts provides information about state per captita income taxes. The distribution is mound shaped with mean= $1,701 and standard deviation=$672.

(a) Use the empirical rule to find an interval centered about the mean in which about 68% of the data will fall.
(b) Estimate a range of values centered about the mean in which about 95% of the state per captia income taxes will fall.

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