America used to be number 1 in the world for percentage of adults with four-year degrees, but it has recently dropped to 19th. Here is data on the percentage of adults age 25 or older in each state who had a four-year degree as of 2015 (listed in alphabetical order, with the District of Columbia included):

a. Construct a dotplot, and comment on any interesting features. [The values 54.6, 40.5, and 19.2 belong to DC, MA, and WV, respectively.]
b. The national percentage of adults age 25 or older with a four-year degree was 29.8% in 2015. Would you obtain that same value by averaging the 51 numbers provided? Why or why not?

Transcribed Image Text:

23.5 28.0 27.5 21.1 29.5 38.1 37.6 30.0 54.6 27.3 28.8 30.8 25.9 32.3 24.1 26.7 31.0 22.3 22.5 29.0 37.9 40.5 26.9 33.7 20.7 27.1 31.4 29.3 23.0 34.9 36.8 26.3 34.2 28.4 27.7 27.7 26.1 27.6 31.1 24.1 30.8 28.6 31.9 25.8 27.0 24.9 36.0 36.3 32.9 19.2 27.8 25.7