Word Count : 857

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सहसंबंध गुणांक की गणना करने तथा उसकी सांख्यिकीय सार्थकता का परीक्षण करने के लिए हम निम्नलिखित चरणों का पालन करेंगे: --- प्रथम चरण: तालिका को उपयुक्त रूप में व्यवस्थित करना | एजेंसी | X = कारें (दस हज़ार में) | Y = राजस्व (करोड़ रुपये में) | | ------ | ------------------------ | ---------------------------- | | A | 63.0 | 7.0 | | B | 29.0 | 3.9 | | C | 20.8 | 2.1 | | D | 19.1 | 2.8 | | E | 13.4 | 1.4 | | F | 8.5 | 1.5 | --- द्वितीय चरण: आवश्यक संख्यात्मक सारणियाँ बनाना हमें Pearson के सहसंबंध गुणांक (r) के लिए निम्नलिखित गणनाएँ करनी होंगी: * $\sum X$, $\sum Y$ * $\sum XY$, $\sum X^2$, $\sum Y^2$ | एजेंसी | X | Y | XY | X² | Y² | | ------ | ----- | ---- | ------ | ------- | ----- | | A | 63.0 | 7.0 | 441.0 | 3969.00 | 49.00 | | B | 29.0 | 3.9 | 113.1 | 841.00 | 15.21 | | C | 20.8 | 2.1 | 43.68 | 432.64 | 4.41 | | D | 19.1 | 2.8 | 53.48 | 364.81 | 7.84 | | E | 13.4 | 1.4 | 18.76 | ___ ____ _________ __________ ________ ________ _____ _____ _____ __________.
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