Police plan to monitor vehicle speed limits by using

radar traps in 4 different places in a city. If detected exceed

speed limit or speeding The police will doa ticket. Radar

R, R, R 1 2 3

and

R4

were installed 40%, 30%, 20% and 10% of the time of day, respectively. When

a student speeding to campus has a chance of 0.15 each;

0.1; 0.5; 0.25 through the four radar positions. To facilitate

answer the following questions, draw the tree diagram

a) Determine the probability if the student is ticketed on the way

to the campus bypassing a radar trap

R1

b) Determine the probability if the student is ticketed on the way

to the campus bypassing a radar trap

R2

c) Determine the probability if the student DOES NOT get a deep ticket

journey to campus bypassing radar traps

R3

d) Determine the probability if the student DOES NOT get a deep ticket

journey to campus bypassing radar traps

R4