Algebra-1

Question Analysis
This question tests the student's ability to identify the mode of a given data set. The mode is the value that appears most frequently in the data set.

Key Concept Explanation
The mode is the value that appears most frequently in a set of data. A set of data may have one mode, multiple modes, or no mode.

Step-by-step Solution
1. Count the frequency of each data point: 7 (1 time), 9 (2 times), 11 (1 time), 13 (3 times), 15 (1 time)
2. Identify t...