This video explains how to apply empirical rule to determine percent of scores less than or equal to a given exam score.

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deviation

# Normal Distribution: Use the Empirical Rule to Find Percent of Scores Less Than Or Equal to X

# Normal Distribution: Find a Z Score and a Data Value (General)

# Introduction to the Standard Normal Distribution

# Standard Normal Distribution: Find a Z Score and a Data Value (Dog Weights)

# Standard Normal Distribution: Relate Standard Deviation to Z-scores

# Normal Distribution: Mean, Median, Mode, and Standard Deviation From Graph

# Mean, Median, Standard Deviation, Min, Max, and Range on the TI84

This video explains how to apply empirical rule to determine percent of scores less than or equal to a given exam score.

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This video explains how to determine a z-score and how to use a z-score to determine a data value.

This video introduces the standard normal distribution

This video explains how to determine a z-score and how to use a z-score to determine a data value.

This video relates standard deviations to z-scores.

The video explains how to determine the mean, median, mode and standard deviation from a graph of a normal distribution.

This video explains how to use the one variable statistics tool on the TI-84.