Mark, Erica, Larry, and Jennifer have each defined a fuzzy set to describe what they feel is a “good” grade. Each person paired the letter grades A, B, C, D. and F with a membership value. The results are as follows.
Mark: M = {(A, 1), (B, 0.75), (C, 0.5), (D, 0.5), (F, 0)}
Erica: E = {(A, 1), (B, 0), (C, 0), (D, 0), (F, 0))}
Larry: L={(A, l), (B, l), (C, l), (D, I), (F,0)}
Jennifer: J — ((A, 1), (B, 0.8), (C, 0.6), (D, 0.1), (F, 0))
a. Which of the four people considers an A grade to be the only good grade!
b. Which of the four people is most likely to be satisfied with a grade of D or better?
c. Write a fuzzy set that you would use to describe the set of good grades. Consider only the letter grades A, B, C, D, and F.
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Chapter 2 Solutions
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