The midpoint 3

Ranges are 10-20 20-30 30-40 40-50. If the frequency is 7 15 26 12, what is the midpoint?

Correct answer:

x =  32.1667

Step-by-step explanation:

x=7+15+26+127 15+15 25+26 35+12 45=6193=3261=32.1667

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