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To determine how many groups of three can be formed from four colors, we can use the combination formula, which is expressed as ( C(n, r) = \frac{n!}{r!(n-r)!} ). Here, ( n ) is the total number of colors (4) and ( r ) is the number of colors to choose (3). Applying the formula, we get ( C(4, 3) = \frac{4!}{3!(4-3)!} = \frac{4}{1} = 4 ). Therefore, there are 4 different groups of three that can be formed from four colors.

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