Based on the following calculator output, determine the inter-quartile range of the dataset. 1-Var-Stats x = 143 Σæ = 1001 Σχ2 = 144283 Sx = 13.7840487521 σχ = 12.7615493909 n = 7 minX = 120 Q₁ 130 Med = 147 Q3 = 149
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