What is the mode of the list of numbers below? choose all answers that are correct. 6, 1, 5, 2, 6, 5, 2, 6, 5 a. 2 b. 4.2 c. 5 d. 6

Rearrange the numbers in order from least to greatest:

6, 1, 5, 2, 6, 5, 2, 6, 5

1, 2, 2, 5, 5, 5, 6, 6, 6

The number 1 is used once. The number 2 is used twice. Numbers 5 and 6 are used three times. 

The mode is the number that is represented most in a set of numbers. Since 5 and 6 are both represented three times, these numbers will be the mode for this set.

The answers are C. 5 and D. 6.