To determine which of the tables follows a ratio, we should look for a relationship between the values in columns A and B. A ratio means that for every unit increase in column A, the corresponding value in column B increases in a consistent proportion.
Let's analyze the tables one by one:
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First Table:
A B 1 5 2 6 3 7
The differences in column B are 1 (from 5 to 6 and from 6 to 7). This does not show a consistent ratio.
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Second Table:
A B 1 1 2 4 3 9
The differences in column B are 3 (from 1 to 4) and 5 (from 4 to 9), which also does not show a consistent ratio.
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Third Table:
A B 1 4 2 5 3 7
The differences are +1 (from 4 to 5) and +2 (from 5 to 7), again showing no constant ratio.
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Fourth Table:
A B 1 2 2 4 3 6
The differences are +2 (from 2 to 4) and +2 (from 4 to 6). This shows a consistent increase, and we can see that B = 2A. Thus, this table follows a strict ratio of 2:1.
Based on the analysis above, the fourth table follows a ratio (specifically 2:1).