Suppose the graph shows a manufacturer's total revenue, in thousands of dollars, from the sale of x cellular telephones to dealers. Is the marginal revenue greater at 800 cell phones or at 1000?
?
?
A. 800
B. 1000
Answer: A
Mathematics
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A. 
B. 
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Given a normal distribution with mean -10 and standard deviation 5, find the area under the normal curve and above the given interval on the horizontal axis.(-?, -5]
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