Suppose that we are doing batch testing with batches of size 12. Suppose that the probability that a batch of size 12 tests negative is .655. Determine the expected number (expected value) of tests needed for a group of size 12.
Added by Dawn P.
Step 1
We are given that the probability of a negative result is 0.655, so P(N) = 0.655. Consequently, the probability that the batch tests positive is P(P) = 1 - 0.655 = 0.345. Show more…
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