Variance of Scalar Multiple of Random Variable Formula

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Variance of Scalar Multiple of Random Variable is the variance calculated when a random variable is multiplied by a constant scalar. Check FAQs
VcX=(c2)σ2Random X
VcX - Variance of Scalar Multiple of Random Variable?c - Scalar Value c?σ2Random X - Variance of Random Variable X?

Variance of Scalar Multiple of Random Variable Example

With values
With units
Only example

Here is how the Variance of Scalar Multiple of Random Variable equation looks like with Values.

Here is how the Variance of Scalar Multiple of Random Variable equation looks like with Units.

Here is how the Variance of Scalar Multiple of Random Variable equation looks like.

36Edit=(2Edit2)9Edit
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Variance of Scalar Multiple of Random Variable Solution

Follow our step by step solution on how to calculate Variance of Scalar Multiple of Random Variable?

FIRST Step Consider the formula
VcX=(c2)σ2Random X
Next Step Substitute values of Variables
VcX=(22)9
Next Step Prepare to Evaluate
VcX=(22)9
LAST Step Evaluate
VcX=36

Variance of Scalar Multiple of Random Variable Formula Elements

Variables
Variance of Scalar Multiple of Random Variable
Variance of Scalar Multiple of Random Variable is the variance calculated when a random variable is multiplied by a constant scalar.
Symbol: VcX
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Scalar Value c
Scalar Value c represents a constant number used for scaling or multiplying random variables.
Symbol: c
Measurement: NAUnit: Unitless
Note: Value can be positive or negative.
Variance of Random Variable X
Variance of Random Variable X is the measure of variability or dispersion of random variable X.
Symbol: σ2Random X
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.

Other formulas in Variance category

​Go Variance of Sum of Independent Random Variables
σ2Sum=σ2Random X+σ2Random Y
​Go Variance of Data
σ2=(Σx2N)-(μ2)
​Go Variance given Standard Deviation
σ2=(σ)2
​Go Pooled Variance
VPooled=((NX-1)σ2X)+((NY-1)σ2Y)NX+NY-2

How to Evaluate Variance of Scalar Multiple of Random Variable?

Variance of Scalar Multiple of Random Variable evaluator uses Variance of Scalar Multiple of Random Variable = (Scalar Value c^2)*Variance of Random Variable X to evaluate the Variance of Scalar Multiple of Random Variable, Variance of Scalar Multiple of Random Variable formula is defined as the variance calculated when a random variable is multiplied by a constant scalar. Variance of Scalar Multiple of Random Variable is denoted by VcX symbol.

How to evaluate Variance of Scalar Multiple of Random Variable using this online evaluator? To use this online evaluator for Variance of Scalar Multiple of Random Variable, enter Scalar Value c (c) & Variance of Random Variable X 2Random X) and hit the calculate button.

FAQs on Variance of Scalar Multiple of Random Variable

What is the formula to find Variance of Scalar Multiple of Random Variable?
The formula of Variance of Scalar Multiple of Random Variable is expressed as Variance of Scalar Multiple of Random Variable = (Scalar Value c^2)*Variance of Random Variable X. Here is an example- 36 = (2^2)*9.
How to calculate Variance of Scalar Multiple of Random Variable?
With Scalar Value c (c) & Variance of Random Variable X 2Random X) we can find Variance of Scalar Multiple of Random Variable using the formula - Variance of Scalar Multiple of Random Variable = (Scalar Value c^2)*Variance of Random Variable X.
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