Suppose that shoe sizes of American women have a bell-shaped distribution with a mean of 8.39 and a standard deviation of 1.52. Using the empirical rule, what percentage of American women have shoe sizes that are between 5.35 and 11.43

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

step-by-step explanation:

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