<P> For the standard score Z of X it gives: </P> <Dl> <Dd> P (L − μ σ <Z <U − μ σ) = γ . (\ displaystyle P \ left ((\ frac (L - \ mu) (\ sigma)) <Z <(\ frac (U - \ mu) (\ sigma)) \ right) = \ gamma .) </Dd> </Dl> <Dd> P (L − μ σ <Z <U − μ σ) = γ . (\ displaystyle P \ left ((\ frac (L - \ mu) (\ sigma)) <Z <(\ frac (U - \ mu) (\ sigma)) \ right) = \ gamma .) </Dd> <P> By determining the quantile z such that </P>

What does a z score of 3 mean