็ป„ๅˆ้ข„ๆœŸๆ”ถ็›Š่ฎก็ฎ—ๅ™จ

E(Rp) = ฮฃ wแตขยทRแตข

ๆŒ‰ๆƒ้‡ๅŠ ๆ€ป็š„็ป„ๅˆๆœŸๆœ›ๆ”ถ็›Šใ€‚

๐Ÿ“Œ ่ฎก็ฎ—่ฏดๆ˜Ž
  • 60%ร—12%+40%ร—8% = 10.4%ใ€‚
  • ๆƒ้‡ๅบ”ๅˆ่ฎก 100%ใ€‚