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A researcher wants to examine the relationship between opinion of a proposed new gas mine and the political party followed. The observed frequencies are summarized

A researcher wants to examine the relationship between opinion of a proposed new gas mine and the political party followed. The observed frequencies are summarized in the following table.

	Opinion
For	Against	Undecided
Political party followed	Greens	27	23	20
Labor	3	4	28
Liberal	10	30	25

What is the total number of respondents in this survey?

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