Home /
Expert Answers /
Advanced Math /
a-software-package-consists-of-12-programs-5-of-which-must-be-upgraded-the-following-is-the-pmf-f-pa450
(Solved): A software package consists of 12 programs, 5 of which must be upgraded. The following is the pmf f ...
A software package consists of 12 programs, 5 of which must be upgraded. The following is the pmf for this situation. If 4 programs are randomly chosen for testing: a) What is the probability that at least 2 of the 4 must be upgraded? Write your answer as a reduced fraction. A b) What is the probability that at most 2 must be upgraded? Write your answer as a reduced fraction. A c) What is the expected number of programs (out of the 4) that must be upgraded? Write your answer as a reduced fraction. A