There is a large variation in price for private fouryear colleges in the United States. The average 2007€“2008 tuition and fees ranged from $3,000 to over $36,000 annually, according to CollegeBoard (www. collegeboard.com/). The distribution of full-time undergraduates at private four-year institutions is:

Supposing a college student at a private four-year institution is randomly selected to participate in a survey, what is the probability that the student:
a. Attends a college that costs less than $12,000 annually?
b. Attends a college that costs $30,000 or more annually?
c. Attends a college that costs between $15,000 and $26,999 annually?
d. Attends a college that costs less than $3000 annually?

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Tuition and Fees Percent of Full-Time Undergraduate 36,000 and over 33,000 to $35,999 $30,000 to $32,999 $27,000 to $29,999 24,000 to $26,999 21,000 to $23,999 $18,000 to $20,999 $15,000 to $17,999 12,000 to $14,999 9,000 to $11,999 $6,000 to $8,999 $3,000 to $5,999 2