Prove that if 21 Un, then 41 (u+l - u_1); and similarly, if 3 I Un, then 91 (u+l - u_1).

Normal Distribution If your graph is: 1. Unimodal 2. Symmetry 3. Bell Shape It is a normal distribution – mean s – standard deviation s^ 2– variance µ – mean σ – standard deviation σ^ 2– variance Total area under a normal distribution curve is 1! The standard normal distribution is used to compare two different data sets in a normalized curve....