SL AA · Statistics and Probability
Normal distribution and z-scores
Standardising with z = (x - μ)/σ, then reading off the standard normal. SL AA Paper 2 always asks a working-backwards question — given P(X < a) = 0.95, find a.
Practise Normal distribution and z-scores with AI marking
Open the full SL AA engine — every question in this unit is worked through with instant AI-graded feedback on your handwritten workings.
Open SL AA Statistics and Probability →
Related in Statistics and Probability
Sibling topic in other IB Maths courses
Free tools you might want