RT - Journal Article T1 - A Perturbed Half-normal Distribution and Its Applications JF - srtc-jsri YR - 2018 JO - srtc-jsri VO - 14 IS - 2 UR - http://jsri.srtc.ac.ir/article-1-272-en.html SP - 219 EP - 246 K1 - Error function K1 - half-normal distribution K1 - hypergeometric function K1 - skewness K1 - moment generating function. AB - In this paper, a new generalization of the half-normal distribution which is called the perturbed half-normal distribution is introduced. The new distribution belongs to a family of distributions which includes the half-normal distribution along with an extra parameter to regulate skewness. The probability density function (pdf) is derived and some various properties of the new distribution are obtained. The derived properties include the cumulative distribution function (cdf), the $r$th moment, moment generating function, characteristic function, mean deviation about the mean and estimation of the parameters using the method of moments and maximum likelihood. Finally, the flexibility and potentiality of the new distribution is illustratedin an application to two real data sets. LA eng UL http://jsri.srtc.ac.ir/article-1-272-en.html M3 10.29252/jsri.14.2.219 ER -