d

${\delta }_B$

34.1

0.8267

34.2

0.8254

34.3

0.8242

34.5

0.8229

34.5

0.8216

34.6

0.8204

34.7

0.8191

34.8

0.8179

34.9

0.8166

极差

0.0101

MSE

2.5 × 10⁻⁵