Open the Course Data file first.
Part 1 – Summarize the distribution of a categorical variable:
- Open the Course Data file. The objective is for you to generate visual displays to examine the distribution of the Expected_gradevariable. For this question, students were asked what grade they expected in the statistics course. Generate at least 2 visual displays to examine the distribution of the Expected_gradevariable. Paste below any output that you think effectively summarizes the distribution of that variable.
- 2.In a few sentences describe the distribution of the Expected_gradevariable. Be sure to focus on the different values that the variable takes and how often the variable takes those values. What does the output you included in question #1 tell you about how students responded to the survey question for this variable?
- 3.If you were to pick one student at random from the Course Data Set, how do you think that student would respond when asked what grade they expected in the statistics course? Refer to evidence from question #1 to support your reasoning.
4.Did any students not respond to the survey question for the Expected_gradevariable? If so, how many did not respond (give both as a count and as a percent of the total sample size)?
Part 2 – Summarize the distribution of a quantitative variable:
5.Open the Course Data file. The objective is for you to generate visual displays and numerical measures to examine the distribution of the Height_inchesvariable. For this question, students were asked to provide their height in inches. Generate a histogram and a box plot for the Height_inchesvariable. Paste below the histogram and box plot.
6.Next, in a few sentences describe the distribution of the Height_inchesvariable. Be sure to focus on the different values that the variable takes and how often the variable takes those values. Also, describe the center, shape, and spread of the distribution of the Height_inchesvariable, and describe whether you notice any outliers. Refer to output included in question #6 to support your claims about the distribution of the variable.
7.List below the mean, median, standard deviation and IQR for the Height_inchesvariable.
8.What would you say is a typical or expected value for the Height_inchesvariable? Refer to any evidence from above to support your reasoning.
9.Did any students not respond to the survey question for the Height_inchesvariable? If so, how many did not respond (give both as a count and as a percent of the total sample size)?
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