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Answer:
There is a 44.16% probability that exactly 1 of the tested bottles is contaminated.
Step-by-step explanation:
is the number of different combinatios of x objects from a set of n elements, given by the following formula.
In this problem, we have that:
Total number of combinations:
Desired combinations:
It is 1 one 5(contamined) and 2 of 17(non contamined). So:
What is the probability that exactly 1 of the tested bottles is contaminated?
There is a 44.16% probability that exactly 1 of the tested bottles is contaminated.