4. Unlocked for sale The "sold" listings on a popular auction website included 21 sales of used "unlocked" phones of one popular model. Here are the sales prices. 450 415 495 300 325 430 370 400 325 400 235 330 304 415 355 405 449 355 425 299 345 (a) Find the percentile of the phone that sold for $325. (b) What was the sales price of the phone that was at the third quartile Q2?

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