Unfortunately, the whole world is not built on the principle of a normal distribution. In the preceding example the real distribution is badly skewed because most children do not have language...

Unfortunately, the whole world is not built on the principle of a normal distribution. In the preceding example the real distribution is badly skewed because most children do not have language problems and therefore produce all or most constructions correctly.

a. Diagram how the distribution might look.

b. How would you go about finding the cut off for the bottom 10% if the distribution is not normal?