解：a. X??Xi?1nin?0.60,Y??Yi?1nin?0.178
?(Xi?17i?X)(Yi?Y)?0.102
?(Xi?17i?X)2?0.40
ib??(Xi?17i?17?X)(Yi?Y)?2?X)i?(X
0.102?0.255 0.40a?Y?bX?0.178?0.255?0.60?0.025
?y?0.025?0.255x
b. 当y?0.205时，x?0.71mg
7c. r??(Xi?1i?X)(Yi?Y)7 ?(Xi?17i?X)2?(Yi?Y)2i?1又∵?(Yi?Y)2?0.02602
i?17∴r?0.102?0.9998
0.40?0.02602
第3章分析化学中的误差与数据处理
解：a.X??Xi?1nin?0.60,Y??Yi?1nin?0.178?(Xi?17i?X)(Yi?Y)?0.102?(Xi?17i?X)2?0.40ib??(Xi?17i?17?X)(Yi?Y)?2?X)i?(X0.102?0.2550.40a?Y?bX?0.178?0.255?0.60?0.025<
推荐度：
点击下载文档文档为doc格式
