Seudónimo Seudónimo
  • 17-09-2021
  • Mathematics
contestada

Ohk sove this first
Multiple correct​

Ohk sove this firstMultiple correct class=

Respuesta :

sphaziza sphaziza
  • 17-09-2021

Answer:

k=3(n+1)(n+2)

Step-by-step explanation:

Given P(Ei)=in and let P(Ei)=ki(i+1)

so

∑i=1nP(Ei)=k∑i=1ni(i+1)=k[n(n+1)(2n+1)6+n(n+1)2]

so

1=kn(n+1)2[2n+13+1]=k3⋅(n+1)(n+2)

so k=3(n+1)(n+2)

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