Out of 200 randomly selected people who participated in a poll, 120 said that they support the new policy introduced by the current mayor of New York City. Conclusion was made that 60% of all New Yorkers support new policy. Does this statement represent descriptive or inferential statistics?

It's descriptive.

Step-by-step explanation:

inferential statistic, means we are inferring based on a sample of our population. Many times we need to infer because the data we need to collect is too large, i. e. the population is too large e. g. the average age of high school students in the US. so we take a sample, a portion of this population and we calculate their mean age. If our sample is random enough, we can "infer" to a certain degree of accuracy the mean

But descriptive statistics, describes the data. They are numbers used to summarise and describe a data. 60% describes the data.