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neonofarm [45]
3 years ago
15

Among the thirty largest U.S. cities, the mean one-way commute time to work is 25.8 minutes. The longest one-way travel time is

in
New York City, where the mean time is 38.2 minutes. Assume the distribution of travel times in New York City follows the normal
probability distribution and the standard deviation is 70 minutes. Use Appendix B.3.
Mathematics
1 answer:
dmitriy555 [2]3 years ago
5 0
B3 is the ratio of 38
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\displaystyle x \approx 37.4^\circ

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  1. Substitute in variables [Cosine]:                                                                    \displaystyle cosx^\circ = \frac{5.8}{7.3}
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