Statistics: Uncertainty vs Variability

Experimental errors

Physical phenomena

Assumptions about beam deflections

Incomplete understanding of reality (correct)

To capture what is actually happening in reality (correct)

To avoid experimentation

To complicate the understanding

To reduce uncertainties

Materials being perfectly elastic at all stress levels

Applying large magnitudes of load on beams

Experimental observations matching calculated values

Determination of beam deflections (correct)

<p>Uncertainty is derived from theoretical information, while variability is derived from data extracted from observations.</p> Signup and view all the answers

<p>Aleatory uncertainty and epistemic uncertainty</p> Signup and view all the answers

<p>When the quantity is measured at multiple instances and there are considerable differences between the measurement trials</p> Signup and view all the answers

<p>Natural randomness</p> Signup and view all the answers