Christine has always been weak in mathematics. based on her performance prior to the final exam in calculus, there is a 63% chance that she will fail the course if she does not have a tutor. with a tutor, her probability of failing decreases to 33%. there is only a 73% chance that she will find a tutor at such short notice. a. what is the probability that christine fails the course? (round your answer to 4 decimal places.) b. christine ends up failing the course. what is the probability that she had found a tutor? (round your answer to 4 decimal places.)

(a) The probability that Christine fails the course is 0.411.

(b) The probability that Christine finds a tutor given that she fails the course is 0.586.

Step-by-step explanation:

Let the events be:

X = Christine fails the course.

Y = Christine finds a tutor.

Given:

(a)

Compute the probability that Christine fails the course as follows:

Thus, the probability that Christine fails the course is 0.411.

(b)

Compute the probability that Christine finds a tutor given that she fails the course as follows:

Thus, the probability that Christine finds a tutor given that she fails the course is 0.586.

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

answer:

f(5/2) = 10/3

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step-by-step explanation: