A manager at a local grocery store learns that 70% of her customers will use a credit card when making

A manager at a local grocery store learns that 70% of her customers will use a credit card when making a purchase. use Excel’s Analysis ToolPak with a seed of 1, to simulate a sample of 15 customers waiting in line at the grocery store to make a purchase and repeat the simulation 500 times. Based on the 500 simulations, report the average number of customers who use a credit card to make a purchase. What is the standard deviation number of customers using a credit card

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