PLEASE HELP FIRST TO ANSWER ACCURATELY AND WITH A GOOD EXPLANATION GETS BRAINLIEST!

Answer:
8 3/4
Step-by-step explanation:
The reason is because on the graph the most common size was 1 3/4, so you count how many x's there was. There were 5 x's so you multiply 1 3/4 by 5 and you get 8 3/4
Hope this helps! :) Plz mark as brainliest!