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The number of cupcakes sold per year at the GBC Cafe follows the normal distribution. 39% of the time more than 300,000 cupcakes are sold
The number of cupcakes sold per year at the GBC Cafe follows the normal distribution. 39% of the time more than 300,000 cupcakes are sold annually and 10% of the time sales are more than 325,000 cupcakes. What is the mean and the standard deviation?. Explain your answer step by step.
| Mean | |
| Standard Deviation |
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