R による解析: > x <- c(9.7, 10.3, 9.6, 7.7, 10.2, 10.6, 10.4, 11.4, 7.8, 8.6) > y <- c(9.9, 10.9, 9.4, 11.4, 10.1, 8.4, 10.4, 11.4, 9.0, 9.6) > cor.test(x, y, method="pearson") Pearson's product-moment correlation data: x and y t = 0.3736, df = 8, p-value = 0.7184 alternative hypothesis: true correlation is not equal to 0 95 percent confidence interval: -0.5434819 0.7026470 sample estimates: cor 0.1309