Assignment 4

Figure 1 is a Descriptive model. It's a summary of the given data, most often used as a table or graph. The data presented is organized and presented in a way that displays the most obvious features about it. From the charts we could reasonably deduce the mean, median, and mode of the data and see if there is any skewness. 

Figure 2 is a Predictive model. The chart is predicting what the scores of the students and instructor will most likely be based off the given data. It cannot predict the future-however it can determine what might happen that includes risk assessments in its analysis. Predictive statistics typically help business owners understand their customers better, identity new opportunities for growth, or spot a potential problem. For this figure, it predicts the scores will lower based off previous data. 

Figure 3 is a Inferential model. It draws conclusions based off a sample of a bigger data set. This particular figure wants to know if Rick Perry has a chance of winning in the upcoming primary election. Asking every registered Republican in the nation would be impossible, so the chart draws from a smaller sample-a poll. Measuring a sample of a bigger population draws conclusions about the population as a whole.