Standard Deviation Formula, Statistics, Variance, Sample and Population Mean

This statistics video tutorial explains how to use the standard deviation formula to calculate the population standard deviation. The formula for the sample standard deviation is also provided. This video shows you the variables associated with the sample mean and the population mean. In addition, it discusses how to calculate variance from standard deviation.
Introduction to Statistics:
• Introduction to Statis...
Arithmetic, Geometric, & Harmonic Mean:
• Arithmetic Mean, Geome...
Cumulative Relative Frequency Table:
• How To Make a Cumulati...
Quartiles, Deciles, & Percentiles:
• Quartiles, Deciles, & ...
Interquartile Range & Outliers:
• How To Find The Interq...
___________________________________
Skewness & Symmetric Distribution:
• Skewness - Right, Left...
Sample Mean and Population Mean:
• Sample Mean and Popula...
Mean, Median, & Mode - Grouped Data:
• Mean, Median, and Mode...
Standard Deviation:
• How To Calculate The S...
Variance:
• How To Calculate Variance
___________________________________
Mean Absolute Deviation:
• Mean Absolute Deviatio...
Standard Deviation of Grouped Data:
• How To Calculate The S...
Introduction to Probability:
• Introduction to Probab...
Probability Formulas:
• Probability Formulas, ...
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here's a cool python program I made for this: import numpy from math import sqrt heights = [175, 180, 190] new_heights = [] x = len(heights) z = numpy.mean(heights) for i in heights: y = i - z y = y**2 new_heights.append(y) for i in range(x): e = new_heights[i] / x new_heights[i] = e std_dev = sqrt(sum(new_heights)) print(std_dev)

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Thanks for the video, I literally thought regular standard deviation was the same with Population and sample deviation

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Hello, when you are solving standard deviation, I don't see the part in the formula where we use (n-1). It's sqrt8/3 at the 6:00 mark in the video?

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I believe it's Because We are using the Population instead of a sample

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