Standardise and read areas

Z=(X-μ)/σ is standard normal. With Φ(z)=P(Z≤z), P(X>b)=1-Φ((b-μ)/σ) and P(a<X<b)=Φ((b-μ)/σ)-Φ((a-μ)/σ). Recover a score with x=μ+zσ. Know whether a supplied table shows left cumulative areas, right tails or areas from zero. Expected counts equal the model probability times the number of observations.