chi-squared distribution (with 2 degrees of freedom)
GPTKB entity
Statements (23)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:organization
|
| gptkbp:cumulativeDistributionFunction |
F(x) = 1 - exp(-x/2) for x > 0
|
| gptkbp:degreesOfFreedom |
2
|
| gptkbp:entropy |
1 + ln(2)
|
| gptkbp:hasSpecialCase |
gptkb:chi-squared_distribution
gptkb:gamma_distribution |
| https://www.w3.org/2000/01/rdf-schema#label |
chi-squared distribution (with 2 degrees of freedom)
|
| gptkbp:kurtosis |
6
|
| gptkbp:meaning |
2
|
| gptkbp:medium |
2*ln(2) ≈ 1.386
|
| gptkbp:mode |
0
|
| gptkbp:pdf |
f(x) = (1/2) * exp(-x/2) for x > 0
|
| gptkbp:relatedTo |
gptkb:exponential_distribution
|
| gptkbp:scaleParameter_(gamma) |
θ=2
|
| gptkbp:shapeParameter_(gamma) |
k=1
|
| gptkbp:skewness |
2
|
| gptkbp:sumOfSquaresOf |
two independent standard normal random variables
|
| gptkbp:supports |
x > 0
|
| gptkbp:used_in |
goodness-of-fit tests
statistical hypothesis testing |
| gptkbp:variant |
4
|
| gptkbp:bfsParent |
gptkb:exponential_distribution_(when_k=1)
|
| gptkbp:bfsLayer |
8
|