Value judgments are based on people’s tastes, preferences, and ethical opinions.

Which of the following statements is true?

A) A bar chart has many limitations in comparison to pie charts. B) A bar chart does not allow for the comparison of a single variable across many segments. C) A bar chart can only be used to represent independent variables. D) A bar chart indicates the frequency of a variable by using rectangles of different heights or lengths.

If a monopolist's price is $50 at the output where marginal revenue equals marginal cost and average total cost is $43, then the incremental profit from the last unit sold is $7

Indicate whether the statement is true or false