ability information, angband 3.5.1

[Tibarius]

A quick question to character generation in 3.5.1. Can any coder please confirm, that the Information in the ability table (which is available in the online help and which is identical to the Information on the Generation Screen) is wrong?

a human ranger starts with 19 to hit on melee and 25 to hit on shoot
a high-elf ranger starts with 23 to hit on melee and 33 to hit on shoot
that makes a difference of +4/+8

the help file (and the Generation Screen) say +10/+25

2. weapon Inspect Information

my new fresh character has bought a main gauche (1d5) (+8,+1) in the shop
inspecting the weapon says:
1 have 1.0 blows per round (which i consider correct)
it also says that i have an average damage of 4.2 per round. How Comes that?

1d5=average 3 + 1 todam Bonus makes 4.0 not 4.2 ???