Respuesta :

mperemsky
The mean is the average, so you need to add up all of the values, divide by the total number of values and you will have the average.

(3x1)+(4x4)+(5x5)+(6x4)+(7x2)+(8x1)+(9x1)+(10x1)+(11x1)=120
120 / 20 = 6

Answer: A) 6

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