题目

Mr. King works very long hours every day. He usually gets up at 5:30. He brushes his teeth quickly and goes to his workplace (工作地点). Then he runs with some kids. After that he takes a shower. He eats his breakfast at 7:00. His work starts at 8:10. He is good at math and many boys and girls learn math from him. All the kids like him very much. He often talks or plays games with the kids. He usually goes to bed after 22:00. He is often very tired but he likes his job and loves the kids. He doesn’t work on weekends. Mr. King likes reading at home on weekends. Sometimes some kids’ pare某射击运动员在一次射击练习中，成绩（单位：环）记录如下：8，9，8，7，10．这组数据的平均数和中位数分别是________．