File:Exponential_distribution_pdf_-_public_domain.svg · Wikimedia Commons · See Wikimedia Commons
Phân phối mũ
Sign in to saveAlso known as lifetime distribution
Phân phối xác suất liên tục mô tả xác suất của một khoảng thời gian giữa hai sự kiện
Key facts
- Parameters
- 0,"}}'> λ > 0 , {\displaystyle \lambda >0,} rate, or inverse scale
- Support
- x ∈ [ 0 , ∞ ) {\displaystyle x\in [0,\infty )}
- λ e − λ x {\displaystyle \lambda e^{-\lambda x}}
- Cdf
- 1 − e − λ x {\displaystyle 1-e^{-\lambda x}}
- Quantile
- − ln ( 1 − p ) λ {\displaystyle -{\frac {\ln(1-p)}{\lambda }}}
- Mean
- 1 λ {\displaystyle {\frac {1}{\lambda }}}
- Median
- ln 2 λ {\displaystyle {\frac {\ln 2}{\lambda }}}
- Mode
- 0 {\displaystyle 0}
- Variance
- 1 λ 2 {\displaystyle {\frac {1}{\lambda ^{2}}}}
- Skewness
- 2 {\displaystyle 2}
- Excess kurtosis
- 6 {\displaystyle 6}
- Entropy
- 1 − ln λ {\displaystyle 1-\ln \lambda }
- Mgf
- λ λ − t , for t < λ {\displaystyle {\frac {\lambda }{\lambda -t}},{\text{ for }}t<\lambda }
- Cf
- λ λ − i t {\displaystyle {\frac {\lambda }{\lambda -it}}}
- Fisher information
- 1 λ 2 {\displaystyle {\frac {1}{\lambda ^{2}}}}
- Kullback leibler divergence
- ln λ 0 λ + λ λ 0 − 1 {\displaystyle \ln {\frac {\lambda _{0}}{\lambda }}+{\frac {\lambda }{\lambda _{0}}}-1}
via Wikipedia infobox
Wikidata facts
- Subclass of
- continuous probability distribution
- Image
- Exponential distribution cdf - public domain.svg
Show 5 more facts
- Commons category
- Exponential distribution
- Stack Exchange tag
- stackoverflow.com/tags/exponential-distribution
- has characteristic
- memorylessness
- on focus list of Wikimedia project
- Wikipedia:Vital articles/Level/4
- maintained by WikiProject
- WikiProject Mathematics
via Wikidata · CC0