Compare and interpret the measures to select the data with the least variation.
Dataset C has a standard deviation of 1.2 and a mean of 25.
Dataset D has a standard deviation of 1.14 and a mean of 48.
Dataset A has a standard deviation of 1.9 and a mean of 21.
Dataset B has a standard deviation of 1.41 and a mean of 29.
Based on the information provided, Dataset C has the least variation as it has the smallest standard deviation of 1.2. This indicates that the data points in Dataset C are closer to the mean of 25 compared to the other datasets.
On the other hand, Dataset D has the highest mean of 48, which suggests that the data points in this dataset are more spread out compared to the other datasets. Dataset A has a higher standard deviation of 1.9, indicating more variation in the data points, while Dataset B falls in between with a standard deviation of 1.41.
In summary, Dataset C has the least variation in its data points, followed by Dataset B, Dataset D, and Dataset A. This information can help in determining which dataset may be more reliable or consistent for analysis purposes.