What percent of the New York City commutes are for less than 27 minutes?

timer Asked: Mar 9th, 2016

Question description

Among U.S. cities with a population of more than 250,000 the mean one-way commute time to work is 24.3 minutes. The longest one-way travel time is in New York City, where the mean time is 38.8 minutes. Assume the distribution of travel times in New York City follows the normal probability distribution and the standard deviation is 7.7 minutes.

What percent of the New York City commutes are for less than 27 minutes? 

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