Question

fill in the blank. for data sets having a distribution that is approximately bell - shaped, __ states that about 68% of all data values fall within one standard deviation from the mean. for data sets having a distribution that is approximately bell - shaped, __ states that about 68% of all data values fall within one standard deviation from the mean.

Explanation:

The Empirical Rule (also known as the 68 - 95 - 99.7 rule) applies to approximately bell - shaped (normal) distributions. It gives the approximate percentages of data within 1, 2, and 3 standard deviations of the mean. Specifically, about 68% of data falls within one standard deviation of the mean.

Answer:

the Empirical Rule