- #36
flyingpig
- 2,579
- 1
It is a 2nd year course...
vela said:You've shown [itex]P_k^n(x) \ge 0[/itex]. Now what?
vela said:Use the fact that if a>b and c>d then a+c>b+d.
Like micromass said, it depends on the level of rigor your professor wants. In any case, if you've already written it up, you might as well include it.flyingpig said:Do you think I still need to show that P => 0 when I write it out? Because it looked trivial when I typed it here...
Part iii assumes f(x)=1. What do you get if you put that into the summation? (You should recognize the sum.)flyingpig said:Also how do I do iii)? I was thinking of doing the same thing with multiplying things out for ii), but P => 0, it could be 0, so it will mess things up.
Why? Where did you get this from?flyingpig said:So I must find
[tex]P = \binom{n}{k} x^k (1 - x)^{n-k} = 1[/tex]
vela said:Why? Where did you get this from?
vela said:Do you understand sigma notation?
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