The following variables are of interest to security analysts. Which are discrete and which are continuous random variables? a. The quarterly earnings of a particular firm b. The number of new products...

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Extracted text: The following variables are of interest to security analysts. Which are discrete and which are continuous random variables? a. The quarterly earnings of a particular firm b. The number of new products introduced per year by a firm c. The number of defective parts in a shipment of nuts and bolts d. The amount of ink used in printing a Sunday edition of the New York Times