A cell phone user selects apps to download. Each of 10 apps is independently…

A cell phone user selects apps to download. Each of 10 apps is independently selected with probability 0.24.
Round your answers to two decimal places (e.g. 98.76).
(a) If each of the first 9 apps are downloaded, what is the probability that the last app is downloaded?
(b) What is the probability that the cell phone user downloads at least 3 apps?
(c) What is the probability that app 1 or 2 is downloaded?