when did what do you mean come out
What Do You Mean? "What Do You Mean?" is a song recorded by Canadian singer Justin Bieber for his fourth studio album Purpose (2015). The song was released on August 28, 2015, as the album's lead single by Def Jam. Written by Bieber, Jason "Poo Bear" Boyd and Mason Levy, the song was produced by MdL and co-produced by Bieber. "What Do You Mean?" is a pop and tropical house song, with its instrumentation consisting in light flourishes of panpipes, looped vocal samples, piano chords, fervent synths, bass and "slick beat" elements with the sound of a clock ticking, while Bieber uses a smooth, soulful vocal. Lyrically, "What Do You Mean?" describes not being able to figure out the opposite sex with Bieber asking a girl why her body language is conflicting with her words.
Mean The mean of a probability distribution is the long-run arithmetic average value of a random variable having that distribution. In this context, it is also known as the expected value. For a discrete probability distribution, the mean is given by   ∑ x P ( x )  {\displaystyle \textstyle \sum xP(x)} , where the sum is taken over all possible values of the random variable and   P ( x )  {\displaystyle P(x)}  is the probability mass function. For a continuous distribution,the mean is    ∫ − ∞  ∞  x f ( x ) d x  {\displaystyle \textstyle \int _{-\infty }^{\infty }xf(x)\,dx} , where   f ( x )  {\displaystyle f(x)}  is the probability density function. In all cases, including those in which the distribution is neither discrete nor continuous, the mean is the Lebesgue integral of the random variable with respect to its probability measure. The mean need not exist or be finite; for some probability distributions the mean is infinite (+∞ or −∞), while others have no mean.