Mathematics, 18.02.2022 18:50 oliviaboils

A hiker attempting to cross a wilderness area has two GPS systems of intermittent reliability because of the areas remoteness .from past experience he estimates that at any moment the probability that system I will work is 0.85, that system II will work is 0.90 , and both will work is 0.80 . the probability that at any moment at least one of the systems will work is about:

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A hiker attempting to cross a wilderness area has two GPS systems of intermittent reliability becaus...