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A financial analyst computed the ROI for all companies listed on the NYSE. She found that...

A financial analyst computed the ROI for all companies listed on the NYSE. She found that the mean of this distribution was 10% with standard deviation of 5%. She is interested in examining further those companies whose ROI is between 14% and 16% of the approximately 2,000 companies listed on the exchange, how many are of interest of her?

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