## A hiker attempting to cross a wilderness area has two GPS systems of intermittent reliability because of the areas remoteness .from past exp

Question

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___________.A. 0.87

B. 0.92

C. 0.75

D. 0.95

E. 0.88

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2022-01-06T04:30:12+00:00
2022-01-06T04:30:12+00:00 1 Answer
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## Answers ( )

Answer:D. 0.95

Step-by-step explanation:The probability that at any moment, at least one of the systems will work is determined by the

probability that system I works, added to the probability that system II works, and subtracted by the probability that both systems work:The probability that at any moment at least one of the systems will work is about 0.95.