SL 4.9—Normal distribution Topic Practice
SL 4.9—Normal distribution Topic Practice
Students practise computing normal probabilities and inverse-normal values using mean, standard deviation, and GDC cdf/invNorm functions.
How this is tested
- compute P(a c), or P(X < d) using normalcdf with μ, σ, and bounds
- use inverse normal to find a cutoff value for a given cumulative probability
- shade and interpret the correct region under a normal distribution curve