Answer:
(C)
Step-by-step explanation:
From the given figure, we can see that 8 is an outlier which is at a very large distance from the rest of the data values that ranges between 300 to 500.
Thus, In this distribution, 8 is an outlier.
Now, In order to find the measure of variability in the distribution, if the distribution contains an outlier, then Inter Quartile range is the best measure of variability of the distribution.
Thus, The IQR is the best measure of variability because the distribution has an outlier.
Hence, option C is correct.