The following graph appeared in the Lexington (Ky.) Herald-Leader in October 5, 1975. Identify the reason why this graph is an incorrect representation of data.
(A) The value of a currency cannot be plotted on a graph.
(B) The time scale on the horizontal axis is erratic.
(C) Pounds and dollars are not comparable units.
(D) The vertical axis should display British pounds.
Answer: (B) The time scale on the horizontal axis is erratic.
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