Answer to Question #88606 in Statistics and Probability for Diane

Question

A person is considered wealthy if they are in the top 10% of earners in the city. How much does a single person need to at least make to be wealthy in this city?

mean= 41 ,standard deviation= 29

Answer 1

P(Z<z)=0.9 -> z=1.28 -> x=1.28*29+41=78.12