The probability density functions for the waiting time t (in minutes) for a person arriving at the bus stop is
f(t) = 1/30 [0,30]
Find the probabilities that the person will wait (a) no more than 5 minutes and (b) at least 18 minutes
5. f(x)= (1/3)e^-t/3, [0,infinity]
a) p(t<2)
b) p(1
c) p(t=3)
d)p(t is greater or equal to 2)