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In order to find the weighted mean of this set of the data, we need to know the weight for each data in the set, and this information is not given in your question.

Definition: When each number ai is to have weight wi, the weighted mean is equal to

(w1a1+w2a2 + ... + wnan)/(w1 + w2 + ... + wn).

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15y ago

What else can I help you with?