Among community college students surveyed, 50% had no traffic tickets, 15% had one ticket, 25% had two tickets, and 10% had three tickets. The mean number of tickets was 0.75 tickets, and the standard deviation was 0.93 tickets.
Among CC students- 50- have no traffic tickets- 15- have had one traff.docx
1. Among CC students, 50% have no traffic tickets, 15% have had one traffic ticket, 25% have had
two traffic tickets and the other 10% have had three traffic tickets. Find the population mean
and population standard deviation of the number of tickets.
(b) The mean is: Round to two decimal places.
(c) The standard deviation is: Round to two decimal places.