Question

the following table summarizes the numbers of grocery stores in 3 neighborhoods and classifies them by the percentage of their inventory that is fresh produce. number of grocery stores tink place lilad cross bron east total < 10% of inventory 4 3 5 12 ≥ 10% of inventory 2 7 10 19 total 6 10 15 31 tage is curious whether the neighborhood of a grocery store will help him predict how much fresh produce the store has. which mosaic plot should tage use? choose 1 answer: a plot a b plot b

Explanation:

Mosaic plots are used to display the relationship between two categorical variables. In this case, Tage wants to use the neighborhood of a grocery store (categorical) to predict the percentage of inventory that is fresh produce (also categorical). The standard way to set up a mosaic plot for prediction is to have the predictor variable (neighborhood) on the vertical axis and the response variable (percentage of inventory) on the horizontal axis. Plot A has neighborhood on the vertical axis and percentage of inventory on the horizontal axis, which is the correct setup for using neighborhood to predict the percentage of inventory. Plot B has the variables reversed, which would be used if we were using the percentage of inventory to predict the neighborhood, which is the opposite of what Tage wants.

Answer:

A. Plot A