Videos and lessons to help High School students learn how to use
the mean and standard deviation of a data set to fit it to a
normal distribution and to estimate population percentages.
Recognize that there are data sets for which such a procedure is
not appropriate. Use calculators, spreadsheets, and tables to
estimate areas under the normal curve.
Common Core: HSS-ID.A.4
Core (Statistics & Probability)
What is a "Standard Normal Distribution"?
Both a "normal distribution" and "standard normal distribution" are
Normal Distribution & Z-scores
This video shows how to calculate "inside areas" and "areas in the
extreme" in a normal distribution using Z-scores.
Introduction to the Normal Distribution - using a spreadsheet.
The Normal Distribution and the 68-95-99.7 Rule
This video talks about the normal distribution and what percentage
of observed values fall within either 1, 2, or 3 standard deviations
from the mean. One specific example is discussed.
Normal Distribution Practice Problems.
Excel Normal Distribution Calculations
This video shows how to calculate the area to the left of a z-score
using EXCEL. It also shows how to get a z-score with the
probability, mean and standard deviation. It can be expanded for
Normal Distribution - Explained Simply (part 1)
This video describes the standard normal distribution and its
properties with respect to the percentage of observations within
each standard deviation. It also makes reference to two key
statistical demarcation points (i.e., 1.96 and 2.58) and their
relationship to the normal distribution. Finally, I mention two
tests that can be used to test normal distributions for statistical
Normal Distribution - Explained Simply (part 2).
Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget which allows your to practice solving Algebra, Trigonometry, Calculus and other math topics.
You can use the Mathway widget below to practice Statistics or other math topics. Try the given examples, or type in your own problem. Then click "Answer" to check your answer.