Use the Appropriate Probability Model (Poisson)

Essay

Use the appropriate probability model (Poisson).
-A recent survey of local cell phone retailers showed that of all cell phones sold last
month, 64% had a camera, 28% had a music player and 22% had both.
a. What is the probability that a cell phone sold last month had a camera or a music
player?
b. What is the probability that a cell phone sold last month did not have either a camera
or a music player?
c. Is a cell phone having a camera and a music player mutually exclusive? Explain.