its Let X be a standard normally distributed random variable, x(x) = density function and x(x)...

 

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its Let X be a standard normally distributed random variable, x(x) = density function and x(x) = x(t)dt its distribution function. Prove that: X (x x)x(x) < 1 + x2x(x) < 1 *x(x) < x(x), for all positive real x. its Let X be a standard normally distributed random variable, x(x) = density function and x(x) = x(t)dt its distribution function. Prove that: X (x x)x(x) < 1 + x2x(x) < 1 *x(x) < x(x), for all positive real x.