Given the following table, what is the correct computation to find mean?

Select one:
a. (0.30+0.20+0.10)/(0+1+2)
b. (0.30+0.20+0.10)/3
c. (0)(0.30) + (1)(0.20) + (2)(0.10)
d. (0+1+2)(0.30+0.20+0.10)
e. None of the choices

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