Question: Estimating SD The figure below shows two Normal curves, both with mean 0. Approximately what is the standard deviation of each of these curves? -

Estimating SD The figure below shows two Normal curves, both with mean 0. Approximately what is the standard deviation of each of these curves?

- -1.6 -1.2 -0.8 -0.4 0 0.4 0.8 80 1.2 1.6

- -1.6 -1.2 -0.8 -0.4 0 0.4 0.8 80 1.2 1.6

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