Measures of variation or dispersion describe the spread or variability in a dataset.
The following are considered measures of dispersion:
Mean is a measure of central tendency, not dispersion. Therefore, the correct answer includes only options (B), (C), and (D).
Fig. shows repeated glucose measurement for a single sample. Choose the correct findings from the following statements. 
LIST:
A. Instrument A is precise and unbiased.
B. Instrument B is precise and biased.
C. Instrument B has a positive bias.
D. Instrument C has only positive bias.
E. Instrument C is unbiased.
Match List-I with List-II 

