1. The problem statement, all variables and given/known data There was study made, with a histogram shown below where the maximum number of calls made were 80, of the students who sent messages, 75% sent X or less, determine X. 2. Relevant equations X/80= 0.75 3. The attempt at a solution Now unless i'm missing something (which I'll proceed to lash myself if that's true) the answer should be 60, yet the book says 62. Is this a misprint or am i missing something?