Teenagers were surveyed about their favorite manufacturer of headphones. The data in Table 10 are based on their responses.

a. Construct a frequency bar graph.
b. Construct a relative frequency bar graph.
c. What proportion of the teenagers prefer Skullcandy headphones?
d. What proportion of the teenagers do NOT prefer Skullcandy headphones?
e. For the surveyed teenagers, which is the most popular manufacturer of headphones? Is it easier to tell this by inspecting your frequency bar graph or Table 10? Explain.

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Table 10 Teenagers' Favorite Manufacturers of Headphones Apple Apple Beats Beats Beats Sony Skullcandy Beats Beats Beats Apple Other Beats Skullcandy Beats Beats Beats Apple Other Beats Other Sony Skullcandy Beats Beats Apple Skullcandy Other Apple Apple Skullcandy Apple Beats Apple Beats Beats Bose Beats Beats Beats Beats Apple Beats Other Apple Beats Apple Beats Apple Bose