So I just sat Human factors and got a 68% what a bummer!
But knowing that I had fell for a few
Of CASA's devious tricks and was confident that I knew the subject,
i attempted again 1 hour later and got a 83%
One question that came up that shocked me was;
Q, For what percentage of the population do aircrafts manufacturors design aircraft cockpits for?
a, 80%
b,90%
c,95%
d,100%

But just incase you get this the answer is 90%

are you sure ? i think is 90 %

3.2.1 Anthropometric Database Design Considerations

{A}

The following are considerations that must be made when using and applying anthropometric data.

a. Percentile Range - Design and sizing of space modules should ensure accommodation, compatibility, operability, and maintainability by the user population. Generally, design limits are based on a range of the user population from the 5th percentile values for critical body dimensions, as appropriate. The use of this range will theoretically provide coverage for 90% of the user population for that dimension.

Good find!
I shall have to inform my ground school teacher as he was baffled too,
And told me 95%