Probability as Area
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1. Define X and units.
2. Sketch the support.
3. Shade the requested interval.
4. Use F(b)-F(a).
5. Remember P(X=x)=0 for continuous X.
6. Interpret the resulting area in context.

Original synthetic data generated for STATLAB Academy. No textbook data used.
Educational material for STATLAB Academy. Verify assumptions, units, tail direction, and rounding before making a decision.