title: Comment on "probability distribution of power fluctuations in turbulence".
abstract: Bandi et al. [Phys. Rev. E 79, 016309 (2009)] reported a closed form expression for the probability density function of the product of two correlated normal random variables and proposed an approximation for the distribution of its mean. Here, we question the closed form expression and derive exact expressions for the distribution of the mean. The proposed approximation is shown to be poor.
authors.affiliation: School of Mathematics, University of Manchester, Manchester M13 9PL, United Kingdom.
authors.forename: Saralees
authors.initials: S
authors.lastname: Nadarajah
authors.affiliation: School of Mathematics, University of Manchester, Manchester M13 9PL, United Kingdom.
authors.forename: Zuonaki
authors.initials: Z
authors.lastname: Ongodiebi