[b]1.[/b] Select values of the mean (mew) and standard deviation (sigma) required;[br][b]2.[/b] Select value for the probability and [b]either[/b] [i]P[/i]([i]X[/i] < [i]x[/i]) = [i]p[/i] [b]or[/b] [i]P[/i]([i]X[/i] > [i]x[/i]) = [i]p[/i], but [b]not both[/b];[br][b]3.[/b] For the central probability select the value of p_1 required. Please make sure previous selections are deselected.