Answer:

mean: 35.92

median: 34

mode: 25 or 38

Step-by-step explanation:

mean: 30+25+45+50+62+38+25+43+38+27+28+20 = 431

431 ÷ 12 = 35.92

median: 30 + 38 = 68

68 ÷ 2 = 34

mode: 25 or 38