# How do you find the z score corresponding to the 27th percentile?

May 17, 2015

The $27 t h$ percentile corresponding to the z-score, would be the z-score which satisfies the following.

$\Phi \left(z\right) = 0.27$

Which we would look at our table to find $z$ to be

$z \approx - 0.61$