THE UNIVERSITY OF TEXAS AT AUSTIN
Department of Electrical and Computer Engineering
EE 351K, Fall 2007
Assignment No. 3 Due: Thursday, September 20, 2007
Please include the following information on the first page of each assignment:
(1) Your
name
(printed legibly), (2) course number
EE 351K
, (3)
Assignment Number
, and (4)
Due Date
.
Thank you.
1.
A computer scan of a recent article in the
New York Times
indicated that there
were 300 words of one letter, 250 words of two letters, 475 words of three letters,
270 words of four letters, and 380 words of five letters, and 550 words of six or
more letters.
If a word is selected at random from this article, what is the probability it will
have
(i)
exactly 3 letters.
(ii)
less than 3 letters.
(iii)
at least three letters (i.e., 3 or more letters).
2.
Consider the act of randomly throwing two fair dice.
(i)
Identify all possible outcomes and the probability of each outcome.
(ii)

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