Muslim, Jewish, atheist and Catholic adds up to about 130%, New York Texas and California to about 100%.So... the US people really think that on average 1/3 of their population lives in New York city, and another 3rd lives in California?
I assume these questions were not asked together...
And how the heck do you get to 20% transgender? Do they realize that this would mean that every 5th person they know should be one? Do the people in the US not learn percentages in school? Same with 27% muslim, 30% jewish and 40% military veterans. (+ add the 58% Christian, making it a very interesting religious mix for some people...)
I'm not interpreting this as a US thing, more as showing a cognitive bias in proportion guessing. When we're uncertain we collectively seem to bias towards 50:50.