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**gva0324** 2) 10% of a certain type of component are fault. Two components of this type are fitted to a machine, which will function provided at least one of this components is not faulty. Stating the assumptions you make, calculate the probability that the machine will function.

Attempt to answer:

The probability that both components are faulty is 0.1 x 0.1 = 0.01 and therefore the probability that at least one of these components is working is 1-0.01 = 0.99

But then how do I find the probability the machine will work?

I know the formula

P ( M | A ) = P ( M n A) / P(A)

but this doesnt seem to help for this question. How can I solve it?

Thank you very much for any help