Question

side - by - side bar graph
a side - by - side bar graph is a variation of a bar graph that shows the relationship between two categorical variables.
interpret the first orange bar. what does it represent?
interpret the 2nd light blue bar. what does it represent?

Explanation:

Without color - coding key for bars, assume based on text. First orange bar likely % of children wearing glasses. 2nd light - blue bar likely % of adults wearing contacts.

Answer:

First orange bar: Percentage of children wearing glasses.
2nd light - blue bar: Percentage of adults wearing contacts.