To ensure Madeline has at least 4 socks of the same color, she needs to grab 11 socks due to the Pigeonhole Principle.
To guarantee that Madeline has at least 4 socks of the same color, she needs to grab 11 socks. This can be explained by the Pigeonhole Principle, which states that if there are n+1 items to be placed into n boxes, then at least one box will contain more than one item.
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