Distribution

Abbreviation

Parameters

Failure rate

References

scale

shape

location

Lindley

LD

-

$\theta$

-

increasing

Lindley (1958) [7]

Two-parameter Lindley

TwPLD

-

$\theta \mathrm{,}\alpha$

-

increasing

Shanker et al. (2013) [9]

Quasi Lindley

QLD

$\theta$

$\alpha$

-

increasing

Shanker et al. (2013) [10]

Shanker

SD

-

$\theta$

-

increasing

Shanker (2015) [11]

Akash

AD

-

$\theta$

-

increasing

Shanker (2015) [14]

Lindley with location distribution

LwLD

-

$\theta \mathrm{,}\alpha$

$\beta$

increasing

Monsef (2016) [13]

Three-parameter Lindley

ThPLD

-

$\theta \mathrm{,}\alpha \mathrm{,}\beta$

-

increasing

Shanker et al. (2017) [12]

& decreasing