下表为全国人口的出生率,死亡率,自然增长率的统计数据表.(单位:%.)|年份``````|1991|1993|1995|1997|1999||出生率````|19.7|18.1|17.1|16.6|15.2||死亡率````|6.7 |6.6 |6.6 |6.5 |6.5 ||自然增长率|````|````|````|````|````|
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/16 13:46:15
![下表为全国人口的出生率,死亡率,自然增长率的统计数据表.(单位:%.)|年份``````|1991|1993|1995|1997|1999||出生率````|19.7|18.1|17.1|16.6|15.2||死亡率````|6.7 |6.6 |6.6 |6.5 |6.5 ||自然增长率|````|````|````|````|````|](/uploads/image/z/13892450-50-0.jpg?t=%E4%B8%8B%E8%A1%A8%E4%B8%BA%E5%85%A8%E5%9B%BD%E4%BA%BA%E5%8F%A3%E7%9A%84%E5%87%BA%E7%94%9F%E7%8E%87%2C%E6%AD%BB%E4%BA%A1%E7%8E%87%2C%E8%87%AA%E7%84%B6%E5%A2%9E%E9%95%BF%E7%8E%87%E7%9A%84%E7%BB%9F%E8%AE%A1%E6%95%B0%E6%8D%AE%E8%A1%A8.%28%E5%8D%95%E4%BD%8D%3A%25.%29%7C%E5%B9%B4%E4%BB%BD%60%60%60%60%60%60%7C1991%7C1993%7C1995%7C1997%7C1999%7C%7C%E5%87%BA%E7%94%9F%E7%8E%87%60%60%60%60%7C19.7%7C18.1%7C17.1%7C16.6%7C15.2%7C%7C%E6%AD%BB%E4%BA%A1%E7%8E%87%60%60%60%60%7C6.7+%7C6.6+%7C6.6+%7C6.5+%7C6.5+%7C%7C%E8%87%AA%E7%84%B6%E5%A2%9E%E9%95%BF%E7%8E%87%7C%60%60%60%60%7C%60%60%60%60%7C%60%60%60%60%7C%60%60%60%60%7C%60%60%60%60%7C)
下表为全国人口的出生率,死亡率,自然增长率的统计数据表.(单位:%.)|年份``````|1991|1993|1995|1997|1999||出生率````|19.7|18.1|17.1|16.6|15.2||死亡率````|6.7 |6.6 |6.6 |6.5 |6.5 ||自然增长率|````|````|````|````|````|
下表为全国人口的出生率,死亡率,自然增长率的统计数据表.(单位:%.)
|年份``````|1991|1993|1995|1997|1999|
|出生率````|19.7|18.1|17.1|16.6|15.2|
|死亡率````|6.7 |6.6 |6.6 |6.5 |6.5 |
|自然增长率|````|````|````|````|````|
`````````````````````````````````````
(1)请分别计算出各年份的自然增长率,并填在上表中;(自然增长率=出生率-死亡率)
(2)用一副折线统计图表示全国人口自然增长率的变化情况.
``````````````````````````````````````````````````````````
|年份``````|1991|1993|1995|1997|1999|
|出生率````|19.7|18.1|17.1|16.6|15.2|
|死亡率````|6.7`|6.6`|6.6`|6.5`|6.5`|
|自然增长率|....|....|....|....|....|
下表为全国人口的出生率,死亡率,自然增长率的统计数据表.(单位:%.)|年份``````|1991|1993|1995|1997|1999||出生率````|19.7|18.1|17.1|16.6|15.2||死亡率````|6.7 |6.6 |6.6 |6.5 |6.5 ||自然增长率|````|````|````|````|````|
自己算算不就行了