EE-Learning
Population standard deviation
Catogry:
Math
Subject:
Statistics & Probability
Course:
Summarizing Quantitative Data
Lecture List
Mean absolute deviation example
Mean absolute deviation (MAD)
Range and mid-range
Judging outliers in a dataset
Interpreting box plots
Reading box plots
Constructing a box plot
Worked example: Creating a box plot (even number of data points)
Worked example: Creating a box plot (odd number of data points)
Review and intuition why we divide by n-1 for the unbiased sample variance
Simulation providing evidence that (n-1) gives us unbiased estimate
Simulation showing bias in sample variance
why we divide by n - 1 in variance
Sample standard deviation and bias
Sample variance
Statistics: Alternate variance formulas
Mean and standard deviation versus median and IQR
Population standard deviation
Variance of a population
Measures of spread: range, variance & standard deviation
Interquartile range (IQR)
Median & range puzzlers
Missing value given the mean
mpact on median & mean: increasing an outlier
Impact on median & mean: removing an outlier
Means and medians of different distributions
Comparing means of distributions
Mean, median, & mode example
Statistics intro: Mean, median, & mode