Respuesta :
Using the Empirical Rule, the correct option is given by:
It contains the middle 68% of the distribution.
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The Empirical Rule states that:
- The middle 68% of a distribution is within one standard deviation of the mean.
- The middle 95% of a distribution is within two standard deviations of the mean.
- The middle 99.7% of a distribution is within three standard deviations of the mean.
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- The problem asks the percentage that is within one standard deviation of the mean, which is the middle 68%, thus the correct option is:
It contains the middle 68% of the distribution.
A similar problem is given at https://brainly.com/question/24244232