3. Express the following statements in terms of fuzzy sets:

a. The chance for rain today is 80 percent. (Rain? No rain?)

b. Mr. Smith is 60 years old. (Young?)

c. The salary of the president of the United States is

$250,000 per year. (Low? High? Very high?)

d. The latest survey of economists indicates that they believe that the recession will bottom out in April

(20%), in May (30%), or in June (22%).