Question

x |
1 | 2 | 3 | 4 | 5 |

y |
14 | 18.9 | 14.4 | 19.6 | 20 |

∑ x = 15 ; ∑ y = 86.9 ; ∑ x 2 = 55 ; ∑ y 2 = 1544.73 ; ∑ x y = 273.4

Find r^{2} for the data

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