six different second year medical students at bellevue hospital measured the blood pressure of the same person. The systolic reading (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?

147 125 141 137 146 120

Range= mmHg

Sample standard deviation= mmHg(Round to the nearest tenth as needed)

Sample variance= mmHg2(Round to the nearest tenth as needed)

What should be the value of the standard deviation?