A travel expense coordinator at a hotel needs to understand the fluctuation of gas prices over the course of a year to better plan the department’s travel budget. After doing some research, he...

A travel expense coordinator at a hotel needs to understand the fluctuation of gas prices over the course of a year to better plan the department’s travel budget. After doing some research, he acquired the following data:

(a) Create a frequency plot.

(b) Determine the appropriate non-linear function that matches the data.

(c) What does the model tell about the relationship between average gas prices over the course of 12 months?