6) Which of the following is true of mid spread? A) It is an example of a measure of location. B) It is calculated by finding the difference between the highest and lowest values in the data set. C) It is affected by extreme values. D) It is calculated using only the middle 50% of the data. Answer: 7) Which of the following describes variance? A) It is the difference between the maximum value and the minimum value in the data set. B) It is the difference between the first and third quartiles of a data set. C) It is the average of the squared deviations of the observations from the mean. D) It is the average of the greatest and least values in the data set