Standard Deviation and Coefficient of Variation

This statistics video tutorial explains how to calculate the coefficient of variation and the standard deviation of a sample.
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...
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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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[@TheOrganicChemistryTutor]

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Please do you have a video about coefficient of group data?

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[@feivelwilliamaudiestevianto]

Excuse me Organic chemistry tutor, i have a question, how do you calculate the Standard Deviation of a Population using the Standard Deviations of samples? because i am currently unable to understand it

[@ikvardag3170]

There is own standard deviation formula for calculating Standard deviation of a population, why going on with sample formula at first place?

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[@komolafedeborah2262]

If the data for Hb % levels of blood samples collected from individuals were subjected to analysis and Sum of fx= 8970, Sum of f = 110, Sum of f(x-xbar)square = 550.
Calculate mean, mean deviation and standard deviation and coefficient of Variation.
I have this question from my lecturer. Problem is, how can I calculate the mean deviation without the individual variables ? Being trying this but I've not been able to. Thank you.

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