Prof. S. Brick Math 120
Summer ’02 Applied Calculus; Quiz 15 section 11
0. Print your name:
1. Using the substitution u=x2+ 1, find the antiderivative Z(x2+ 1)8
·2x dx
2. Sketch a possible density function for the distribution of annual income among students
attending our college. Label the graph and its axes, showing the scales there. Show what
graphically corresponds to the percentage of students who earn more than $12,000 a year.
3. Does the function y=e−x2(which has to do with normal distributions) have an
antiderivative ?