Avoiding an accident while driving can depend on reaction time.That time, measured from the time the driver first sees the dangeruntil the driver gets his/her foot on the brake pedal, can bedescribed by a normal model with mean 1.9 seconds and standarddeviation 0.13 seconds. Use the 68-95-99.7 rule(NOT a z table) to answer the following questions. The pictures ofthe 68-95-99.7 rule at this link might help.
http://www.oswego.edu/~srp/stats/6895997.htm
What percentage of drivers have a reaction time more than 2.16seconds?
________%
What percentage of drivers have a reaction time less than 1.77seconds?
________%
What percentage of drivers have a reaction time less than 2.03seconds?
________%