Step 1

Biostatistics 2

A medical researcher is analyzing the blood pressure data of a group of patients participating in a clinical trial. She calculates the standard deviation of the systolic blood pressure measurements and finds it to be 12 mm Hg.

Which of the following statements regarding standard deviation is correct?

  • A) A higher standard deviation indicates that the blood pressure measurements are more consistent
  • B) If the standard deviation were lower, it would suggest less variability in blood pressure measurements
  • C) Standard deviation cannot be calculated for blood pressure data
  • D) The standard deviation is a measure of central tendency in the data
  • E) The standard deviation measures the average blood pressure value in the group


Dr. Ted O'Connell


Dr. Ted O'Connell