Cinder

Mathematics

4 January, 14:24

A new brand of hybrid car claims to get an average of 51 miles per gallon of regular unleaded gasoline during stop and go driving. The distance the car travels on one gallon of fuel has a normal distribution with a standard deviation of 5.8 miles. Reference: Ref 1-13 Approximately what percentage of these hybrid cars get over 60 miles per gallon?

1. 43.94%

2. 1.55%.

3. 93.94%.

4. 6.06%.