题目

Every night, just after the sun goes down. Ruth Medjber talks with her neighbours in Dublin, Ireland, and takes a picture of them at their windows. These photos, in some way, show people's lives during the global pandemic (大流行病). I started out taking photos of just friends and family. In this way, I could connect with them during this special time when people have to stay at home, the photographer explained. I live alone, so I was missing the days when we were free to communicate with friends. Every evening, on my way to seeing friends, I had a sense of purpose.Now she's making new fri甲、乙两人5次射击命中的环数如下：甲：7 9 8 6 10；乙：7 8 9 8 8．则这两人5次射击命中的环数的平均数 .x甲=.x乙=8，方差s甲2  s乙2．（填“＞”“＜”或“=”）．