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1. Calculate the simple correlation coefficient between wing length & tail length of the following 12 birds of a particular species. Also test its significant.
1. Calculate the simple correlation coefficient between wing length & tail length of the following 12 birds of a particular species. Also test its significant. Wing 2 3 4 5 6 7 8 9 10 11 12 length 10.4 10.8 11.1 10.2 10.3 10.2 10.7 10.5 10.8 11.2 10.6 11.4 (cm)x Tail length 7.4 7.6 7.9 7.2 7.4 7.1 7.4 7.2 7.8 7.7 7.8 8.3 (cm)y 2. The date refer to the yield of grain in gms plant(y) and the number of productive tillers (x) and 15 paddy plants Y 37 20 42 36 20 30 26 21 43 44 22 31 26 37 26 X 15 | 12 17 14 12 13 12 9 24 20 14 18 13 15 7 Find the correlation 3. The following data relates to the yield in grams(y) and the matured pods (x) of 10 groundnut plants. Work out the correlation coefficient and test its significance. X: 14 34 20 16 11 11 20 17 22 17 Y: 16 40 21 18 14 13 20 35 17 27 4. Find the persons coefficient of correlation between price and demand from the following data Price 11 13 15 17 18 19 20 Demand 30 29 24 24 21 18 15
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