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measles 49, 142, 71,63 mumps 803, 434,2011, 2554, 351 correlation coefficient for data r=-0.663 a=0.05 Should regression analysis be done?

measles 49, 142, 71,63

mumps 803, 434,2011, 2554, 351

correlation coefficient for data r=-0.663

a=0.05

Should regression analysis be done?

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