Joe Smith is a player in a football team．Several____ago，he and his family were taking a holiday in a small town．One rainy afternoon，it was ____for them to play outdoors，so the family decided to go to the cinema．Joe，his wife(妻子)and ____children drove down to the town's cinema．They bought four____and then went into the hall．The lights were still on(亮着)，and there were just____other people there．When Joe walked in．some of them saw him and____lapping(鼓掌)．Joe gave them a smile and turned to his wife，"Ah，what a warm welcome!I can't believe they know me here．"he said．"I____they've seen my games on TV"When they sat down．a young man turned around to shake hands with Joe．"I just can't believe you know____I am，"Joe said．The man ____puzzled(困惑的)．"All I know'"said the man,"is that they said they would not show the film ____at least ten people had bought tickets．"

日前，国务院教育督导委员会办公室向各地印发《关于开展校园欺凌专项治理的通知》，各学校开展各种远离校园欺凌的宣传教育活动，当地一些公安、检察部门和人民法院也纷纷设立专门机构，深入学校开展法制进校园巡讲活动，学生父母也不忘和孩子们沟通，及时了解孩子们校内外学习和生活情况。家庭、学校、社会、司法携手，构成了未成年人特殊保护的四道防线。小刚说：“有了四大保护，我们未成年人的身心健康和合法权益就完全得到保障了。”

小刚的说法正确吗？请简述理由。

在样本的频数分布直方图中，共有11个小长方形，若中间一个长方形的面积等于其他10个小长方形的面积的和的$\frac{1}{4}$，且样本容量是160，则中间一组的频数为____ ．