For a random variable X with a variance of 4, the variance of the transformed variable Y = 2X + 7 is:

Identify the measures of variability (dispersion) in a dataset from the following: A. Percentiles B. Quartiles C. Range D. Interquartile Range E. Mean Deviation Choose the correct answer from the options given below:

An investor's research indicates that Stock A has a mean monthly return of 10% with a standard deviation of 2%, while Stock B has a mean monthly return of 8% with a standard deviation of 1%. Based strictly on the Coefficient of Variation (CV), which option correctly identifies the stock with the lower relative risk?