What was the conservative ideas after the defeat of neploean 1850?
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A machine produces steel rods. The lengths of the rods are normally distributed with a mean of 26 cm and a standard deviation 1 cm. Rods that are longer than 27 cm or shorter than 24 cm have to be discarded. The machine produces 500 rods per shift. How many rods per shift have to be discarded?
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