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Use the table to answer the question.

Dataset Mean Standard Deviation
1 78 1.23
2 87
1.42

3 83 1.19
Which dataset has the least variability?

Dataset
has the lowest variability.

1 answer

To determine which dataset has the least variability, we can look at the standard deviation values. The dataset with the lowest standard deviation indicates the least variability.

From the table:

  • Dataset 1 has a standard deviation of 1.23
  • Dataset 2 has a standard deviation of 1.42
  • Dataset 3 has a standard deviation of 1.19

Comparing these values:

  • Dataset 1: 1.23
  • Dataset 2: 1.42
  • Dataset 3: 1.19

Dataset 3 has the lowest standard deviation (1.19), indicating that it has the least variability.

Therefore, Dataset 3 has the lowest variability.