Approximate 4 squared to the nearest hundredths place.
1 answer:
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Answer:
0.4286 or 42.86%
Step-by-step explanation:
The probability that an athlete has used drugs and tests positive is given by the probability that he had been using drugs (4%) multiplied by the probability of a true positive (1 - false negative):
The probability that an athlete has NOT used drugs and tests positive is given by the probability that he had not been using drugs (100% - 4%) multiplied by the probability of a false positive (5%):
Finally, the probability that the prohibited drug has been used given that an athlete tested positive is:
The probability is 0.4286 or 42.86%.