# Question

The following data show the exam grades for two different sections of a statistics class that I teach. The first group of data is from a day section of traditional students. The second group of data is from my evening section, which is comprised mostly of older students who work full time during the day. These data can also be found in the Excel file statistics grades. xlsx. Consider these data as discrete data because fractional grades will not occur.

a. Construct a percentage polygon for these data.

b. Construct a cumulative percentage polygon for these data.

c. What conclusions can be drawn about the grade distribution of these two sections?

a. Construct a percentage polygon for these data.

b. Construct a cumulative percentage polygon for these data.

c. What conclusions can be drawn about the grade distribution of these two sections?

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