6.3 Normal Distribution Probabilities. Use technologies such as HyperStat, StatCrunch, or a calculator to solve these. Some of the following problems' help have 2 videos. If you need help, watch the video that shows how to use the TI-84 calculator. Ignore the video about how to use a table of the normal distribution. Some problems are for the Standard Normal distribution (mean=0, std.dev. = 1). For these problems, the z-score is the same as the x-value. (a) The graph shows a Standard Normal Distribution. You are given 1 or 2 z-score(s) and need to shade the area (=probability) corresponding to: P(-2.6 < < 0.6). Click on the "Shade" menu to select the shading option corresponding to the question [to the left, to the right, or between 2 values]. Then slide the arrow to the appropriate z-score. Shade: Left of a value . Click and drag the arrows to adjust the values. -4 -3 -2 -1 0 -1.5 3 (b) Part 2: you are given an area (=probability), and you need to compute c, which is the z-score that corresponds to the statement: P(