Business employees calculated that the expense to produce an additional cell phone is $50. this monetary amount represents a

Marginal cost

Explanation:

The marginal cost of production is the change in total production costs from making one additional unit of a particular product. In this case, it would be one additional cell phone. Analyzing the marginal costs is important for companies and businesses as it allows them to discover at which point they will be able to optimize production and overall operations.

answer; i believe the correct answer is (a) the correlation between the cause variable and outcome variable is zero;

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