下面是统计的10款规格相近的120mL婴儿奶瓶的销售价格数据(单位:元):20,24.5,33,39,45,53,65,76,79,178。请计算该组数据的中位数、上四分位数和下四分位数。
Q1/4=28.75,Q1/2=49,Q3/4=77.5
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