The report Trends in College Pricing 2009 ( www. college board. com) included the information in the

The report €œ Trends in College Pricing 2009€ ( www. college board. com) included the information in the accompanying relative frequency distributions for public and private non-profit four- year college students.
a. Construct a relative frequency histogram for tuition and fees for students at public four- year colleges. Write a few sentences describing the distribution of tuition and fees, commenting on center, spread and shape.
b. Construct a relative frequency histogram for tuition and fees for students at private nonprofit four- year colleges. Be sure to use the same scale for the vertical and horizontal axes as you used for the histogram in Part (a). Write a few sentences describing the distribution of tuition and fees for students at private nonprofit four- year colleges.
c. Write a few sentences describing the differences in the distributions.

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Proportion of Students (relative Frequency) Public Private Four-Year Nonprofit College Four-Year 0 Tultion and Fees tudents College Students 0 to <3,000 0.01 0.32 0.41 9,000 to 12.000 0.13 12,000 to 15,000 0.04 15,000 to < 18,000 0.03 18,000 to21.000 0.02 21,000 to <24.000 0.02 24,000 to <27,000 0.02 27.000 to30,000 0.00 30,000 to <33,000 0.00 33.000 to 36,000 0.00 36,000 to <39,000 0.00 39,000 to<42.000 0.00 0.00 0.05 0.02 0.02 0.04 0.06 0.08 0.11 0.12 0.14 0.09 0.07 0.13 0.07 3,000 to 6,000 6,000 to<9,000