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Guided, difficulty 1 of 3

First quartile by interpolation

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Twelve trainees' assessment scores are:

46, 79, 83, 53, 29, 38, 37, 34, 86, 32, 63, 69

Find the first quartile $Q_1$ using the type 7 method (position $h = (n - 1)p + 1$ ). Give your answer to 2 decimal places.