Author Question: The time taken to deliver a pizza has a uniform probability distribution from 20 minutes to 60 ... (Read 98 times)

waynest · **on:** Jul 24, 2018

The time taken to deliver a pizza has a uniform probability distribution from 20 minutes to 60 minutes. What is the probability that the time to deliver a pizza is at least 25 minutes?
a. 0.125
b. 0.300
c. 0.700
d. 0.875

Question 2

A survey at a large public university reveals that many students hold a (part-time) job while going to college. Out of 127 female students surveyed, 95 have a job and out of 143 male students, 97 have a job. Calculate a 95 confidence interval for the difference in proportions.