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- Find the mean of the random variable X with PDF S 3x² _if 0Develop a random variate generator for a random variable X with the pdf if 0Show that the variance of a geometric random variable X; is given by V ar(X) = q/p^2 .Let X1 and X2 be independent random variables from a normal distribution with mean equal to one and standard deviation equal to one. Derive the distribution of (X2 + X1-2)^2/(X2 - X1)^2. If the resulting distribution is one of the special distributions, identify the distribution and all relevant parameters; otherwise, state "unknown".Find the variance of the random variable X with a PDF given by 3x2 S* if - 1< x< 1, f(x) = 2 otherwise. Submit your answer in fractional form.let x be a random variable with moment generating function Mx(t)=(0.6 + 0.4e^t)^20 then the variance of x isThe owners manual of your new car states that each front tire should be filled to a pressure of 26psi. Suppose the air pressure in each tire is a random variable, with L-pressure in left front tire and R-pressure in right front tire. Suppose the joint pdf is given by f(1,r) = ( ) P +r); 20 <1< 30; 20Show that variance o? = (x²) – ((x))²Let X be a continuous random variable with PDF 3 x > 1 x4 fx(x) = otherwise Find the mean and variance of x.Recommended textbooks for youCalculus For The Life SciencesCalculusISBN:9780321964038Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.Publisher:Pearson Addison Wesley,Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:CengageCalculus For The Life SciencesCalculusISBN:9780321964038Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.Publisher:Pearson Addison Wesley,Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:Cengage