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solid 5.2 t-distribution. The figure on the right dashed shows three unimodal and symmetric curves: dotted the standard normal (z) distribution, the t- distribution with

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solid 5.2 t-distribution. The figure on the right dashed shows three unimodal and symmetric curves: dotted the standard normal (z) distribution, the t- distribution with 5 degrees of freedom, and the t-distribution with 1 degree of freedom. Deter- mine which is which, and explain your reasoning. -2 0 2

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