Which of the Following Statement Is True

Multiple Choice

Which of the following statement is true?

A) The range is found by taking the difference between the high and low values and dividing that value by 2.
B) The interquartile range is found by taking the difference between the 1st and 3rd quartiles and dividing that value by 2.
C) The standard deviation is expressed in terms of the original units of measurement but the variance is not.
D) The values of the standard deviation may be either positive or negative,while the value of the variance will always be positive.