Calculating Sample Variance | Desmos

Expression 4: "v" Subscript, "a" "r" , Baseline equals StartFraction, Start sum from "a" Subscript, 1 , Baseline equals 1 to "n" , end sum, left parenthesis, "d" Subscript, "a" "t" "a" , Baseline left bracket, "a" Subscript, 1 , Baseline , right bracket minus "m" Subscript, "n" , Baseline , right parenthesis squared Over "n" minus 1 , EndFraction

equals

7.6 4 1 0 2 5 6 4 1 0 3

4

Expression 5: variance left parenthesis, "d" Subscript, "a" "t" "a" , Baseline , right parenthesis

equals

7.6 4 1 0 2 5 6 4 1 0 3

5

Expression 6: "s" Subscript, "d" , Baseline equals StartRoot, "v" Subscript, "a" "r" , Baseline , EndRoot

equals

2.7 6 4 2 4 0 5 1 7 9 4

6

Expression 7: "n" equals length left parenthesis, "d" Subscript, "a" "t" "a" , Baseline , right parenthesis

equals

13

7

bits and pieces

8

18

powered by

powered by

Standard Deviation σ

Variance σ

squared

Variance σ

squared

mean μ

Standard Deviation σ

to save your graphs!

New Blank Graph

Examples

Lines: Slope Intercept Form

example

Lines: Point Slope Form

example

Lines: Two Point Form

example

Parabolas: Standard Form

example

Parabolas: Vertex Form

example

Parabolas: Standard Form + Tangent

example

Trigonometry: Period and Amplitude

example

Trigonometry: Phase

example

Trigonometry: Wave Interference

example

Trigonometry: Unit Circle

example

Conic Sections: Circle

example

Conic Sections: Parabola and Focus

example

Conic Sections: Ellipse with Foci

example

Conic Sections: Hyperbola

example

Polar: Rose

example

Polar: Logarithmic Spiral

example

Polar: Limacon

example

Polar: Conic Sections

example

Parametric: Introduction

example

Parametric: Cycloid

example

Transformations: Translating a Function

example

Transformations: Scaling a Function

example

Transformations: Inverse of a Function

example

Statistics: Linear Regression

example

Statistics: Anscombe's Quartet

example

Statistics: 4th Order Polynomial

example

Lists: Family of sin Curves

example

Lists: Curve Stitching

example

Lists: Plotting a List of Points

example

Calculus: Derivatives

example

Calculus: Secant Line

example

Calculus: Tangent Line

example

Calculus: Taylor Expansion of sin(x)

example

Calculus: Integrals

example

Calculus: Integral with adjustable bounds

example

Calculus: Fundamental Theorem of Calculus

example

Terms of Service|Privacy Policy