Which statement(s) are correct about the Pareto Chart shown here for the DOE analysis?

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Which statement(s) are correct about the Pareto Chart shown here for the DOE analysis? (Note: There are 2 correct answers).

It is unknown from this graph how many factors were in the Experimental Design

The factors to keep in the mathematical model are E, D, DE, BD and B with an alpha risk equal to 2.06

The effects to keep in the mathematical model are E, D, DE, BD and B with an alpha risk equal to 0.05

The factors to keep in the mathematical model with a 5% alpha risk are BE, AB, A and AD

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