The length of time patients must wait to see a doctor in a local clinic is uniformly distributed between45minutes and 2 1/2 hours.

(a)What is the probability of a patient waiting exactly50minutes?

(b)What is the probability that a patient would have to wait between75minutes and 2 hours? (Round your answer to two decimal places.)

(c)Compute the probability that a patient would have to wait over 2 hours. (Round your answer to two decimal places.)

(d)Determine the expected waiting time and its standard deviation (in minutes). (Round your standard deviation to two decimal places.)

E(x)= min

= min

B is NOT 0.37

C is NOT 0.33

D Is NOT 12.91 for either one

Last tutor put these answers the were WRONG