I'd imagine it's a lot easier and more effective to teach middle schools basic probability first. All you need is a coin or a deck of cards to introduce them to real world examples.
But to even understand and make good use of cross-validation, you absolutely need to understand expected values, sample size, and the bias/variance tradeoff. That's all statistical intuition that depends more or less directly on a basic understanding of and healthy respect for probability.
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[ 4.2 ms ] story [ 27.1 ms ] threadBut to even understand and make good use of cross-validation, you absolutely need to understand expected values, sample size, and the bias/variance tradeoff. That's all statistical intuition that depends more or less directly on a basic understanding of and healthy respect for probability.