Answer:
approximately 17.3 years
Step-by-step explanation:
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%.
5(3-x)-4(2-3x)>2
15-5x-8+12x>2
7+7x>2
7x>-5
x>-5/7
Answer:
4
Step-by-step explanation:
20 is the median
so before and after 20 is the Q3 and Q1
Q1 is 18
Q3 is 22
22 minus 18