1. Which measures of variability is considered most unreliable? *
A. Range
B. Variance
C. Mean Absolute Deviation
D. Standard deviation
2. What refers to the average of the squared deviations from the mean?
A. Co-efficient of variation
B. Variance
C. Mean Absolute Deviation
D. Standard deviation
A. Range
B. Variance
C. Mean Absolute Deviation
D. Standard deviation
2. What refers to the average of the squared deviations from the mean?
A. Co-efficient of variation
B. Variance
C. Mean Absolute Deviation
D. Standard deviation
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