Selection bias doesn't explain the inter-state difference, which is what the visualizations are attempting to display. For that to be an issue here, you'd have

Selection bias doesn't explain the inter-state difference, which is what the visualizations are attempting to display. For that to be an issue here, you'd have to argue that there's something about living in Nevada as opposed to New York, independent of your attitude towards sex, that would affect whether or not after seeing this question, you chose to answer or pass.