Question: Use Table A. Use Table A to find the proportion of observations from a standard Normal distribution that falls in each of the following regions.
Use Table A. Use Table A to find 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.
(a) z ≤ −2.30
(b) z ≥ −2.30
(c) z > 1.70
(d) −2.30 < z < 1.70
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