x/N

10

50

100

500

1000

0.02

0.3875

0.2297

0.0620

0.1405

0.0955

0.20

0.3715

0.0989

0.9234

0.9621

0.6536

0.40

0.8930

0.3863

0.9431

0.3844

0.9430

0.60

0.2782

0.6464

0.7323

0.1275

0.7215

0.80

0.3610

0.9049

0.9524

0.7373

0.9535

1.00

0.2025

0.4128

0.8573

0.9954

0.9361