Essay
The local Ford dealership claims 40% of their customers are return buyers, i.e., the customers previously purchased a Ford vehicle. Let the random variable x be the number of return buyers in a random sample of 10 recent customers.
Find 
= ______________
Find P(x > 6) = ______________
What would you conclude about the accuracy of the dealership's claim if you found 9 repeat buyers in the sample? Explain your reasoning.
________________________________________________________
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