Question: Which statement is true for a normal distribution? Why not the others? a. The shape of the PDF is always symmetric regardless of and. b.

Which statement is true for a normal distribution? Why not the others?
a. The shape of the PDF is always symmetric regardless of and.
b. The shape of the CDF resembles a bell-shaped curve.
c. When no tables are available, areas may be found by a simple formula.

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