i haven't got a clue on how to solve this... I missed a couple lectures... would appreciate if anyone could help solve the problem with correct solution so that I can verify when i try on my own and so that I can solve the rest of questions like these... [h=1] If the income in a community is normally distributed with a mean of $19,500 and a standard deviation of $1,000 what minimum income does a member of the community have to earn in order to be in the top 10%? What is the maximum one can have and still be in the middle 50%? please show all steps [/h]