Question

Six different​ second-year medical students at Bellevue Hospital measured the blood pressure of the same person. The systolic readings​ (in mmHg) are listed below. Find the​ range, variance, and standard deviation for the given sample data. If the​ subject's blood pressure remains constant and the medical students correctly apply the same measurement​ technique, what should be the value of the standard​ deviation? 143 126 149 137 143 130

Sample variance=____mmHg^2 ​(Round to the nearest tenth as​ needed.)

Sample standard deviation=___mmHg​ (Round to the nearest tenth as​ needed.)

What should be the value of the standard​ deviation?

A.​Ideally, the standard deviation would be one because this is the lowest standard deviation that can be achieved.

B.​Ideally, the standard deviation would be zero because all the measurements should be the same.

C.​Ideally, the standard deviation would be one because all the measurements should be the same.

D.There is no way to tell what the standard deviation should be.

Answer 1