Stat 300: Normal Probability Distributions Problem Set Name: Directions: When answering the questions below, you are expected to use the calculator features being taught and demonstrate the inputs the same as in the lectures and "formulas and calculator steps" document. For graphs, be su to label the values on the graph and shade the correct area. Use the rounding rules unless otherwise stated. For valu of -co, use - 1E99 and for values of oo, use 1E99. 1. Given a standard normal distribution: a. Find the area to the left of z = 0.86 given a mean b. Create a graph. value of 0 and standard deviation of 1. 2. Given a standard normal distribution: a. Find the area to the right of z =-1.78 given a b. Create a graph. mean value of 0 and standard deviation of 1