Coefficient of Variation Calculator

✖The Standard Deviation is a measure of how spread out numbers are.ⓘ Standard Deviation [σ]			+10% -10%
✖The Arithmetic Mean of a given set of integers can be calculated by dividing the sum of all given integers by the total count of the integers.ⓘ Arithmetic Mean [AM]			+10% -10%

✖The Variation Coefficient is a relative measure of dispersion. It is used when the variation of two objects or groups needs to be found.ⓘ Coefficient of Variation [V]

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Formula

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Coefficient of Variation

Formula

`"V" = "σ"*100/"AM"`

Example

`"13.28671"="1.33"*100/"10.01"`

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Download Project Evaluation and Review Technique Formulas PDF

Coefficient of Variation Solution

STEP 0: Pre-Calculation Summary

Formula Used

Variation Coefficient = Standard Deviation*100/Arithmetic Mean
V = σ*100/AM
This formula uses 3 Variables

Variables Used

Variation Coefficient - The Variation Coefficient is a relative measure of dispersion. It is used when the variation of two objects or groups needs to be found.
Standard Deviation - The Standard Deviation is a measure of how spread out numbers are.
Arithmetic Mean - The Arithmetic Mean of a given set of integers can be calculated by dividing the sum of all given integers by the total count of the integers.

STEP 1: Convert Input(s) to Base Unit

Standard Deviation: 1.33 --> No Conversion Required
Arithmetic Mean: 10.01 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

V = σ*100/AM --> 1.33*100/10.01

Evaluating ... ...

V = 13.2867132867133

STEP 3: Convert Result to Output's Unit

13.2867132867133 --> No Conversion Required

FINAL ANSWER

13.2867132867133 ≈ 13.28671 <-- Variation Coefficient

(Calculation completed in 00.004 seconds)

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Created by Chandana P Dev

NSS College of Engineering (NSSCE), Palakkad

Chandana P Dev has created this Calculator and 500+ more calculators!

Verified by Mithila Muthamma PA

Coorg Institute of Technology (CIT), Coorg

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< 8 Quality Control in Construction Calculators

Proportion Non-Confirming in Sample

Go Non-Conforming Proportion = Number of Non-Conforming/Number of Items in Sample

Number Non-Confirming in Sample

Go Number of Non-Conforming = Number of Rejected/Number of Sample

Coefficient of Variation

Go Variation Coefficient = Standard Deviation*100/Arithmetic Mean

Number of Units Tested given Reliability Number

Go Tested Units = (100*Defective Units)/(100-Reliability Number)

Reliability Number

Go Reliability Number = 100-((Defective Units/Tested Units)*100)

Number of Defective Units given Reliability Number

Go Defective Units = (100-Reliability Number)*Tested Units/100

Average Proportion Non-Confirming

Go Average Proportion = Number of Rejected/Number of Inspected

Average Non-Conformities in Inspected Unit

Go Average Non-Conformity = Number of Rejected/Unit Numbers

Coefficient of Variation Formula

Variation Coefficient = Standard Deviation*100/Arithmetic Mean
V = σ*100/AM

What are the major Quality Control Methods Adopted?

The major quality control methods adopted are as follows
1. Inspection: Firstly, it is carried out for the materials of construction for checking their quality and acceptability. later, during the process or during construction.
2. Testing: It is the examination conducted for the material or the product for finding its performance.
3. Sampling: Sampling is a process used in statistical analysis in which a predetermined number of observations are taken from a larger population.

What is Sampling?

In statistics, quality assurance, and survey methodology, sampling is the selection of a subset of individuals from within a statistical population to estimate characteristics of the whole population. The methodology used to sample from a larger population depends on the type of analysis being performed, but it may include simple random sampling or systematic sampling.

How to Calculate Coefficient of Variation?

Coefficient of Variation calculator uses Variation Coefficient = Standard Deviation*100/Arithmetic Mean to calculate the Variation Coefficient, The Coefficient of Variation formula is defined as variation between two objects or between two considered groups. If V of group A is less compared to B, A is considered a less variable group or a more consistent and reliable group. Variation Coefficient is denoted by V symbol.

How to calculate Coefficient of Variation using this online calculator? To use this online calculator for Coefficient of Variation, enter Standard Deviation (σ) & Arithmetic Mean (AM) and hit the calculate button. Here is how the Coefficient of Variation calculation can be explained with given input values -> 13.3 = 1.33*100/10.01.

FAQ

What is Coefficient of Variation?

The Coefficient of Variation formula is defined as variation between two objects or between two considered groups. If V of group A is less compared to B, A is considered a less variable group or a more consistent and reliable group and is represented as V = σ*100/AM or Variation Coefficient = Standard Deviation*100/Arithmetic Mean. The Standard Deviation is a measure of how spread out numbers are & The Arithmetic Mean of a given set of integers can be calculated by dividing the sum of all given integers by the total count of the integers.

How to calculate Coefficient of Variation?

The Coefficient of Variation formula is defined as variation between two objects or between two considered groups. If V of group A is less compared to B, A is considered a less variable group or a more consistent and reliable group is calculated using Variation Coefficient = Standard Deviation*100/Arithmetic Mean. To calculate Coefficient of Variation, you need Standard Deviation (σ) & Arithmetic Mean (AM). With our tool, you need to enter the respective value for Standard Deviation & Arithmetic Mean and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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