start hw 3
start hw3 problem 1
first draft answer to problem 1
add more parts to problem 1 hw 3 answer
add intercept to regressions in hw3 problem 1
fixed irls implementation for hw3 problem 2
add answers for more of hw3 problem 2
add answers for more of hw3 problem 2
add answers for more of hw3 problem 2
add plots for hw3 1g and 2g