平均值

X 1 ¯

X 2 ¯

X 3 ¯

X 4 ¯

X 5 ¯

X 6 ¯

X 7 ¯

X 8 ¯

−15.5

−44.7

−11.9

35.6

278.8

275.1

2120.5

74.1