An assembly consists of two mechanical components. suppose that the probabilities that the first and second components meet specifications are 0.95 and 0.98, respectively. assume that the components are independent. determine the probability mass function of the number of components in the assembly that meet specifications.

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.

therefore the probability mass function of the number of components in the assembly are:

the highest percentage for deaths in construction from highest to lowest is as follows: falls, struck by objects, electrocution, and caught-in/between. these four are collectively known as fatal four.

in the case of falls, the type that is responsible for the overall highest death in the category is falls from roofs.

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step-by-step explanation: