what is the distribution shape? If there are 25 problems in each LR section, how many problems are 1 star, 2 star, 3, star, 4 star, and 5 star respectively?
Can someone go through this question and explain their thought process?
I think I was thrown off by this for two reasons. First, I was uncomfortable drawing the conclusion that Self Help books -> less visits and secondly, in the answer ...