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Old 05-31-2016, 07:59 PM
dwilli3501 dwilli3501 is offline
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Default Problem 1.8c

Not sure how the inequality in Problem 1.8c follows from parts a & b, but it is clear that the following inequality holds in 1.8c

P[(u - N*mu)^2 >= alpha] <= variance/(N*alpha)

Any suggestions?
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Old 06-01-2016, 09:29 AM
dwilli3501 dwilli3501 is offline
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Default Re: Problem 1.8c

Figured out the problem. I mistakenly thought the mean of u was N*mu.
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Old 07-24-2016, 03:28 AM
williamshakespare williamshakespare is offline
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Post solution of 1.8C

1.8(c) solution
1.take [ (u1 - miu) + (u2 - miu) + ... + (un - miu) ] as a new random variable
2.its mean is 0, and variance is N * (variance of ui)
do you got me?
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