Question: Use the standard Normal table to find the following cut-off values for Z. Also sketch a standard Normal curve, and shade the region corresponding to

Use the standard Normal table to find the following cut-off values for Z. Also sketch a standard Normal curve, and shade the region corresponding to the given probability.
a. P (Z < z) = 0.5
b. P (Z > z) = 0.87
c. P (-z < Z < z) = 0.25

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