The standard deviation. the'range, and the interquartile range (lQR) summarize the variability of the data. a. Why is the standard deviation usually preferred over the ranges? b. Why is the IQR sometimes preferred to the standard deviation? c. What is an advantage of the standard deviation over the lQR? a. Why is the standard deviation usually preferred over the range? 0 A. The range is more affected by an outlier. and the standard deviation uses all the data. . The range only uses the largest and smallest observations, while the standard deviation uses all the data except the outliers. O C. The standard deviation is sometimes negative. while the range never is. r O D. The range is an average. while the standard deviation is the actual value. In. Why is the IQR sometimes preferred to the standard deviation? 0 A. The iQR only uses a quarter of the data. while the standard deviation uses all the data. 0 B. The IQR uses all the data except the outliers, while the standard deviation uses all the data. 0 C. The lQR only Includes the largest and smallest observations, so it is easier to calculate. O D. The IQR is not affected by an outlier. while the standard deviation is affected by an outlier. c. What is an advantage of the standard deviation over the I'QR? . The lQR is more dilcult to determine, while the standard deviation can be found easily. . The standard deviation uses all the data, while the [QR uses all the data except outliers. O c. The IQR is an average. while the standard deviation is the actual value. . The standard deviation takes into account the values of all observations, while the IQR only uses some of the data. Click to select your