题目

完形填空（共20小题；每小题1.5分，满分30分） Tom is a worker in my factory and he is a little bit dirty. I have been taking   36   of him for years and years, he always wears an old red hat and carries a   37   bag. He usually spends his break time and his lunchtime by walking around to   38   the unused tins around. Once I saw him by his   39   , with a lot of rubbish bags, which were full of aluminum(铝) tins. He threw them into the back of his car and then   40   the car. Being very curious, I got into my car to   41   him. He drove   42   he re图1是某市2007年2月5日至14日每天最低气温的折线统计图．（1）图2是该市2007年2月5日至14日每天最高气温的频数分布直方图，根据图1提供的信息，补全图2中频数分布直方图；（2）在这10天中，最低气温的众数是______，中位数是______，方差是______．