Which polynomial is in standard form?

Based on what i know about mean, this doesn't add up.

Can someone me i’m confused. will give brainliest and a whole bunch of points

The given dot plot represents the average daily temperatures, in degrees fahrenheit, recorded in a town during the first 15 days of september. if the dot plot is converted to a box plot, the first quartile would be drawn at __ , and the third quartile would be drawn at link to the chart is here