Use Table A or software to find the value of for each of the following situations. In each case, sketch a standard Normal curve and shade the area representing the region.
Twelve percent of the values of a standard Normal distribution are greater than .
Twelve percent of the values of a standard Normal distribution are greater than or equal to .
Twelve percent of the values of a standard Normal distribution are less than .
Fifty percent of the values of a standard Normal distribution are less than .