Question: Using Table 3 in Appendix I, calculate the area under the standard normal curve to the left of the following: a. z = 1.2 b.

Using Table 3 in Appendix I, calculate the area under the standard normal curve to the left of the following:
a. z = 1.2
b. z = - .9
c. z = 1.46
d. z = - .42

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