For the lazy, this is the fine print in the photo:

>This original survey of 1,135 parents aroudn the United States was conducted by Main Street Children's Dentistry & Orthodontics using a Google Forms Survey.

>Parents of children aged 1-17 were asked how often their children have various sugary snacks per week, including cookies, candy, donuts, pastries, ice cream, ice pops, cake, pie, and beverages such as fruit juice, chocolate milk, soft drinks, sports drinks, and energy drinks.

>The averages for each state are based on the responses of at least 20 people who have identified as parents.

The typical threshold for a statistically credible data set is 1,082. So they might be able to say something about the US population. But 20 is waaaayyyy too small to make a statistically significant finding. So you're absolutely right that this sample size is too small to conclude much about each state.

Further, this is a self reported survey given by the kid's dentist. It's likely that parents undreported.

A better study would be to ask parents to keep a daily log of what the family is eating without giving them any indication that you're interested in sugary snacks. And make sure you have more than 1,100 families in each subset you're interested in studying.