Calculating Mean from Bar Graph

Below is a bar graph that shows the number of pets owned by students in a class:

Number of Pets Owned:

From the bar graph, it can be observed that:

• 5 students own 1 pet.
• 7 students own 2 pets.
• 3 students own 3 pets.
• 2 students own 4 pets.

Based on the information presented in the graph, determine the mean number of pets owned by the students.