HW Score 5.1.15 Determine whether the following data set is likely to be normall

Question

HW Score 5.1.15 Determine whether the following data set is likely to be normally distrbuted Explain the reasoning The measured systolic blood pressure of randomly selected adult females Choose the correct answer below A. Normally distributed because any large data set yields normaty distributed values O B. Not normally distributed Most people will have prossures above the average causing a peak in the dstributon at the right C. Normal y distributed Systolic blood pressure levels vary above and bei w the mean by similar amounts the de ro ton has one peak and is pressure results from many factors O D. Not normally distributed Systolic blood pressures wll be about the same for each person, causing a fat distribution curve characteristic of a uniform distributior

Explanation / Answer

Sol: The answer is option (c). If normally distributed, blood pressure measurements from the sample should have a bell shaped curve, i.e.,one peak and symmeticity about this peak. For blood pressures, and other health related variables, most of the people have a variable measurement close to the normal expected value, which causes the peak around that value while some proportion of the sample will deviate from this nomal value. This deviation decreases as move further away from the peak.

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