In: Statistics and Probability
Imagine that income is normally distributed for members of our major political parties. Let’s say the mean for Republicans is 90 (all units in thousands) with a standard deviation of 12, and the mean for Democrats is 70 with a standard deviation of 10. What is the probability that a Democrat drawn at random will score above the income associated with the 10th Percentile Rank for Republicans?
Can you please help me determine the steps I need to take to solve this problem?