Answer:
7
Step-by-step explanation:
[tex]We\ know\ that\\ Mean=\frac{Total\ Sum\ of\ observations}{Total\ number\ of\ observations} \\Here,\\Total\ Sum\ of\ the\ given\ observations\ are :\\9+9+2+8+9+8+7+8+3\\=63\\Total\ number\ of\ the\ given\ observations\ are :\\=9[/tex]
[tex]Hence,\\Mean=\frac{63}{9}\\=7[/tex]
