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Assigned 10/6/10, Due 10/15/10 (by 4:30 in dropbox in MSEE 330)
1. Text, problem 3.25, page 133
2. Text, problem 3.39, page 134. Forpart (d) ±nd the conditional expected values of
and use
them to ±nd
and ±nd the conditional variances of
and use them to ±nd
Also, compare the
found this way with the
found from
and
3. Text, problem 4.55, page 220 parts (a) and (d) only. For part (d) do the calculation in the x
and also in the u domain (start by thinking about what this means).
4. Dwightand Jim are having a snowball±ght.
and
are thepositions, in feet(to left and
right), which their respective snowballs land relative to the target. We have that Dwight²s
snowballs have a pdf
Jim has more consistent aim, but aims a little to the right, so that
(a) What are the mean and variance of
and
?
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 Fall '08
 GELFAND
 Variance, Probability theory, Jim, Dwight s

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