4. (5 points) In a math competition, the average score of a group of 10 people is 84 points, among which Xiao Ming scored 93 points, then the average score of the other 9 people is points.



保留源文本的换行和格式，翻译结果如下：

4. (5 points) In a math competition, the average score of a group of 10 people is 84 points, among which Xiao Ming scored 93 points, then the average score of the other 9 people is points.
4. (5 points) In a math competition, the average score of 10 people in a group is 84 points, among whom Xiao Ming scored 93 points, then the average score of the other 9 people is 
83 points.
【Solution】Solution: $(84 \times 10-93) \div(10-1)$
$$
\begin{array}{l}
=747 \div 9 \\
=83 \text { (points) }
\end{array}
$$

Answer: The average score of the other 9 people is 83 points.
Therefore, the answer is: 83.