1-2. A car
travels along a straight road with the speed shown in the 
graph, where 
and 
follows a normal distribution 
. Plot the 
graph and calculate
the probability that the maximum speed 
reaches 14 m/s.
Solution: 
1-2. A car
travels along a straight road with the speed shown in the graph, where and follows a normal distribution . Plot the graph and calculate
the probability that the maximum speed reaches 14 m/s.
Solution: