Probability Question

Question

The height of n people is 160cm with a stdev of 8. Any person whose height is greater than 170 is defined as tall. - Half of the tall people have a height greater than “H” cm – find the value of h?

Answer 1

Get a z-score chart, http://users.stat.ufl.edu/~athienit/Tables/Ztable.pdf

 

z_tall > 0.8944

1 - 0.8944 = 0.1056

0.1056 / 2 = 0.0528

0.8944 + 0.0528 = 0.9172

 

What is the z for 0.9172?

Use that to determine h.