Explain clearly what is meant by a false negative rate of 5, Ask an Expert

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(a) Explain clearly what is meant by a false negative rate of 5% and a false positive rate of 15%. (b) If the population were screened, what proportion would be expected to test negative for metropathy? (c) What proportion of those testing negative actually have the disease? (d) Explain clearly in words why this proportion is so surprisingly small.

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