Pnts extra, for answering a fourth question correctly A neighborhood medical cen

Question

Pnts extra, for answering a fourth question correctly A neighborhood medical center has recent information regarding rather than existing patients are more likely to schedule an appoitmen simply walking in. New patient Existing patient (E) 120 Scheduled appointment 90 180 Walk-in W 110 a. W What is the probability that a randomly selected individual is a new patient? What is the proba patient? bility that a randomly selected individual is an existing b. Find the conditional probabilities: P(AN), P(AIE), P(WIN), P(WIE). Remen b hat P(AIN), for example, is the probability of a patient scheduling an appointment (A), given that the patient is a new patient ( II. S cores on an endurance test for cardiac patients are normally distributed with = 185 and = 10. a. What is the probability a patient will score below 180? b.What is the probability a patient will score above 1902 c. What is the probability a patient will score above 180?

Explanation / Answer

1)

from above:

a)P(new patient ) =P(N) =200/500 =0.4

P(existing patient)=P(E)=300/500 =0.6

b) P(A|N) =90/200 =0.45

P(A|E) =120/300 =0.4

P(W|N) =110/200 =0.55

P(W|E) =180/300 =0.6

II)

a)

(b)

c)

new patient(N) existing patient(E ) Total schedule appointment (A) 90 120 210 walkin(W) 110 180 290 Total 200 300 500

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