Finding areas Use Table A to fi nd the proportion of
Chapter 3, Problem 3.49(choose chapter or problem)
Finding areas Use Table A to fi nd the proportion of observations from a standard Normal distribution that falls in each of the following regions. In each case, sketch a standard Normal curve and shade the area representing the region. Use an applet or your calculator to check your answers. (a) z $ 22.25 (b) 22.25 , z , 1.77 (c) z , 2.89 (d) 1.44 , z , 2.89
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