A trend chart was produced by RSPE software and is shown below. Profit was defined as the output variable. In reference to the chart below, which of the following statements is true?
The shaded areas represent information about the frequency distribution of profit.
The middle band of shaded area represents 75% of the observed outcomes.
The middle and outer shaded areas together represent 90% of the observed outcomes.
A total of 10% of the simulated profit values are outside of the shaded area.
All of the above.