<img src="https://d5nxst8fruw4z.cloudfront.net/atrk.gif?account=iA1Pi1a8Dy00ym" style="display:none" height="1" width="1" alt="" />

# Normal Distributions

## Fitting a bell curve to a histogram

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Normal Distributions

This Concept introduces students to the standard normal probability distribution.
MEMORY METER
This indicates how strong in your memory this concept is
0
• Video

## Standard Normal Distribution

Explains how the normal distribution relates to standard deviation and z-scores.
MEMORY METER
This indicates how strong in your memory this concept is
0
• Video

## More Empirical Rule and Z-Score practice

Walks through the steps to solve problems involving the normal distribution with use of the empirical rule and z-scores.
MEMORY METER
This indicates how strong in your memory this concept is
0
• Video

## Normal Distribution Problems: Qualitative Sense of Normal Distributions

Explains how to tell which real world example would follow a normal distribution.
MEMORY METER
This indicates how strong in your memory this concept is
0
• Video

## Normal Distribution Problems: z-score

Explains how to find a z-score for a given data point when you know the mean and standard deviation of the entire normal distribution.
MEMORY METER
This indicates how strong in your memory this concept is
0
• Video