Unformatted text preview: scores below 30 (assuming these students may drop) the average was about 47/60. This is fairly normal for Quiz I, and probably a bit higher than future averages; since the material gets harder. Unoﬃcial scale for Quiz I: A’s are 5260, B’s are 4651, C’s are 4045, D’s are 3439. Usually each letter (B, C and D anyway) will span 6 points and the class average will be in the C+ to B range. 1a) The lead variables are x 1 , x 3 and x 4 . 1b) { 13 α, α, , } . 1c) U = 1 3 1 1 1 2) FTTFT 1...
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 Spring '09
 JULIANEDWARDS
 unique solution, Prof. S. Hudson, lead variables

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