Question

which data set has two values for the mode?
o 2,2,2,5,6,7,9,10
o 5,6,8,10,11,11,15,18
o 12,12,13,13,14,14,15,15
o 21,22,22,24,25,26,28,28

Explanation:

Step1: Recall mode definition

The mode is the value that appears most frequently in a data - set.

Step2: Analyze first data - set

In the data - set $2,2,2,5,6,7,9,10$, the mode is $2$ (it appears 3 times and no other value appears as frequently).

Step3: Analyze second data - set

In the data - set $5,6,8,10,11,11,15,18$, the mode is $11$ (it appears 2 times and no other value appears as frequently).

Step4: Analyze third data - set

In the data - set $12,12,13,13,14,14,15,15$, there is no single mode as $12$, $13$, $14$, and $15$ all appear 2 times.

Step5: Analyze fourth data - set

In the data - set $21,22,22,24,25,26,28,28$, the modes are $22$ and $28$ (both appear 2 times and no other value appears more frequently).

Answer:

$21,22,22,24,25,26,28,28$