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The widths of platinum samples manufactured at a factory are normally distributed, with a mean of 1.2 cm and a standard deviation of 0.5 cm.

The widths of platinum samples manufactured at a factory are normally distributed, with a mean of 1.2 cm and a standard deviation of 0.5 cm. Find the z-scores that correspond to each of the following widths. Round your answers to the nearest hundredth, if necessary. (a) 2 cm z = (b) 0.7 cm z =

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