Answer:
If you consider that both components are independent one of the other and the assembly consists of a union of both of them, the probability that a random element of the assembly meet specifications can be obtained as the product of their probabilities of meeting their specifications.
[tex]P_{1}=0.95\\P_{2}=0.98\\P_{12}=P_{1}*P_{2}\\[/tex]
therefore the probability mass function of the number of components in the assembly are:
[tex]P_{12}=0.931[/tex]
