Khan Academy
Khan Academy: Standard Normal Table for Proportion Above
Finding the proportion of a normal distribution that is above a value by calculating a z-score and using a z-table.
Khan Academy
Khan Academy: Normal Distribution Excel Exercise
(Long-26 minutes) Presentation on spreadsheet to show that the normal distribution approximates the binomial distribution for a large number of trials.
Khan Academy
Khan Academy: Deep Definition of the Normal Distribution
Exploring the normal distribution.
Khan Academy
Khan Academy: Median, Mean and Skew From Density Curves
High level analysis of density curves. A focus on median, mean, left-skew and right-skew.
Khan Academy
Khan Academy: Standard Error of the Mean
Standard Error of the Mean (a.k.a. the standard deviation of the sampling distribution of the sample mean!).
Khan Academy
Khan Academy: Variance and Standard Deviation of a Discrete Random Variable
Finding the variance and standard deviation of a discrete random variable.
Khan Academy
Khan Academy: Constructing a Probability Distribution for Random Variable
Sal breaks down how to create the probability distribution of the number of 'heads' after 3 flips of a fair coin.
Khan Academy
Khan Academy: Generalizing K Scores in N Attempts
Sal generalizes 2 scores in 6 attempts to k scores in n attempts.
Sophia Learning
Sophia: Z Score Charts
This lesson shows how charts can be used to determine and list Z-scores.
Sophia Learning
Sophia: Z Score Charts
This lesson shows how charts can be used to determine and list Z-scores.
Sophia Learning
Sophia: Z Score Charts
This lesson shows how charts can be used to determine and list Z-scores.
Sophia Learning
Sophia: Z Score Charts
This lesson shows how charts can be used to determine and list Z-scores.
Sophia Learning
Sophia: Z Scores
In this lesson, students are introduced to Z-scores and their relevance to variance and distribution in data sets.
Sophia Learning
Sophia: Z Scores
In this lesson, students are introduced to Z-scores and their relevance to variance and distribution in data sets.
Sophia Learning
Sophia: Z Test for Population Means
Calculate z-statistic of a population mean. [9:44]