What is the 90th percentile of a standard normal population?

Question

could anyone please explain to me how to find this out.

thanks for helping...

Answer 1

50th percentile is the very middle of the distribution - exactly half above and half below.

90th percentile is the point 90% of the population is below - e.g 90 percentile for height means that someone is very tall for their age - taller than 90% of the population of that age