retrieving value based on quartile function results

[MTOMP73]

I'd like the price returned for the minimum price in the 2nd quartile, the median price, and the maximum price in the 3rd quartile.

What formulas can I use to achieve this?

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Product Price	Model No.	Sum of Quantity
2.1	qpRSS0015SS0	200
	qpRSS0015SS15	200
	qpRSS0015SS7	200
	qpRSS0015SS8	200
2.6	qpRSM0015SS0	200
	qpRSM0015SS15	200
	qpRSM0015SS8	200
	qpRSM0015SS7	200
3.04	qpF815000040	500
3.09	qpF85717040	337
4.45	FMDqpPS014A	1,941
	FMDqpPS014B	1,941
	FMDqpPS014C	1,941
	FMDqpPS015A	1,941
	FMDqpPS015B	1,986
	FMDqpPS015C	1,901
Grand Total		14,088

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