Respuesta :
Answer:
A
Explanation:
The probability that it would fail it's just 10% to a whole 90%
The expected cost per patient under plan B is gotten as; D: $108
How to solve random cost variable?
The expected cost for a discrete random variable x is given by the formula;
C = ∑xi * P(xi)
Where;
xi is the cost associated with the probability
In this question, the random variable x is represented by the cost of each treatment.
For treatment B, there is a possibility that antibiotic 2 works, and in that case the cost x would be $ 100 and P(x) = 0.9
We are told that there is also the possibility that it does not work, and as such, the cost x would be $180 and the probability P(x) = 0.1
Thus, the expected cost is;
C = (100 * 0.9) + (180 * 0.1)
C = $108
Read more about Random Cost Variable at; https://brainly.com/question/15246027
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