Question

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急 求救統計 #6 （可支薪）

6.The National Science Foundation (NSF) sponsored a study on girls participation in informal
science, technology, engineering, or mathematics (STEM) programs. The results of the study were
published in Cascading Influences: Long-Term Impacts of Informal STEM Experiences for Girls
(March 2013). The researchers sampled 174 young women who recently participated in a STEM
program. They used a pie chart to describe the geographic location (urban, suburban, or rural) of
the STEM programs attended. Of the 174 participants, 107 were in urban areas, 57 in suburban
areas, and 10 in rural areas.
a. Determine the proportion of STEM participants from urban areas.
b.Determine the proportion of STEM participants from suburban areas.
c.Determine the proportion of STEM participants from rural areas.
d. Multiply each proportion in parts a-c by 360 to determine the pie slice size (in degrees) for each
location.
e.Use the results, part d, to construct a pie chart for geographic location of STEM participants.
f.Interpret the pie slice for urban areas.
g.Convert the pie chart into a bar graph. Which, in your opinion, is more informative?