SOSC 1000 Lecture Notes - Lecture 3: Electronic Component, Random Variable, Ninetynine
3 Nov 2017
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Chapter 2 review: the angiogram is a standard diagnostic test used in clinical medicine to detect stroke in patients. This test has some risks for the patient, and several noninvasive techniques have been developed that are hoped to be as effective as the angiogram. One such method utilizes that measurement of cerebral blood flow (cbf) in the brain, since stroke patients tend to have lower levels of cbf than normal. Among healthy people, cbf is normally distributed with mean 75 and standard devitation 17. Patients are classified as being at risk for stroke if their cbf is below 40. Ans: find the area left of z = -2. 06. The answer is: 0. 0197: maple tree diameters in a forest area are normally distributed with mean 10 inches and standard deviation 2. 2 inches. Find the proportion of trees having a diameter greater than 15 inches. Ans: find the area right of z = 2. 27.
