..
SOLUTION
[tex]2,2,2,3,3,5,6,6,9,9,10,10,10,12,12,15[/tex]Mode is/are the most occurring value/values in a given data.
That means we could have more than one mode.
[tex]\begin{gathered} 2\text{ appears 3 times} \\ 3\text{ appears 2 times} \\ 5\text{ appears once} \\ 6\text{ appears 2 times} \\ 9\text{ appears 2 times} \\ 10\text{ appears 3 times} \\ 12\text{ apperas 2 times} \\ 15\text{ appears once} \end{gathered}[/tex][tex]Therefore,\text{ 2 and 10 are the mode of the data.}[/tex]