Avoiding an accident while driving can depend on reaction time. That time, measured from the time the driver first sees the danger until the driver gets his/her foot on the brake pedal, can be described by a normal model with mean 1.6 seconds and standard deviation 0.14 seconds. Use the 68-95-99.7 rule (NOT a z table) to answer the following questions. The pictures of the 68-95-99.7 rule at this link might help.
What percentage of drivers have a reaction time more than 1.88 seconds? %
What percentage of drivers have a reaction time less than 1.46 seconds? %
What percentage of drivers have a reaction time less than 1.74 seconds? %