Reading a Box-and-Whisker PlotA box-and-whisker plot titled 2012 Housing Prices (Thousands of Dollars) is shown. The number line goes from 0 to 1,000 in increments of 100. The whiskers range from 320 to 850, and the box ranges from 430 to 580. A line divides the box at 490.
A report states the average selling price is almost $520,000. Which measure of center was most likely used for the report?
What is the approximate range of the middle 50% of prices?

between $320,000 and $850,000

between $320,000 and $490,000

between $430,000 and $580,000

between $490,000 and $850,000