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1 answer:
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Answer:
Step-by-step explanation:
Given
See attachment
To answer this question, we start by equating the denominators of each option to 0; then, solve for x
(a):
This gives
Set the denominator to 0
Solve for x
Factorize:
This implies that:
From above, one of the values of x is 7.
This implies that x = 7 is an excluded value for this quotient.
<em>Other options do not need to be checked, since there is only one answer.</em>
We're told that
a. We want to find . By definition of conditional probability,
By the law of total probability,
Then
(the first equality is Bayes' theorem)
b. We want to find .
since .