That's not how polls work, assuming the selection is done correctly and the question is not loaded.The poll is very misleading. The population of Adults in New York State is 15,476,800 and they polled 718 adults in two days and declared that Governor Cuomo is doing a great job. I wonder what the other 15,476,082 think.
You can play with the numbers here to see just how many (or few) people you need statistically:
Sample Size Calculator - Confidence Level, Confidence Interval, Sample Size, Population Size, Relevant Population - Creative Research Systems
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