Originally Posted by

**vchapman** hey i have a question regarding normal distribution

Q- the speed limit in a school zone is 40km/h. A survey of cars passing shows that their speeds are normally distributed with a mean of 38km/h and a standard deviation of 6km/h

a) what percent of cars passing the school are speeding?

b)if drivers receive speeding tickets for exceeding the posted speed limit by 10%, what is the probability that a driver passing the school will receive a ticket?

*Please show all work*

Thanks in advance