Ohk sove this first
Multiple correct​

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)

for a it would be 24 children.

for b i don't understand the question. is it saying for each individual person they pick 5 reds to 7 greens or is it the whole group. clarify and i hope this can you.

step-by-step explanation:

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step-by-step explanation: