IB skill practice

Interpret inverse normal technology output

Use inverse normal calculator output to identify a boundary value.

Paper 1, Paper 2 5 marks Difficulty 5

Interpret inverse normal technology output - scenario calculation

Inverse normal technology output gives \(z=-0.52\) for a lower-tail probability in a renewable energy trial model with mean \(122\) and standard deviation \(13\). Find the boundary value. Confirm the interpretation before entering the result. Enter the requested value and choose the interpretation that matches the result.

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