This Statistics video tutorial explains how to calculate the standard deviation using 2 examples. You need to calculate the mean before you can calculate the sample standard deviation.
Statistics Formula Sheet:
Introduction to Statistics:
Arithmetic, Geometric, & Harmonic Mean:
Cumulative Relative Frequency Table:
Quartiles, Deciles, & Percentiles:
Interquartile Range & Outliers:
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Skewness & Symmetric Distribution:
Sample Mean and Population Mean:
Mean, Median, & Mode - Grouped Data:
Standard Deviation:
Variance:
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Mean Absolute Deviation:
Standard Deviation of Grouped Data:
Introduction to Probability:
Probability Formulas:
Final Exams and Video Playlists: