右边条形图是从曙光中学800名学生中帮助四川地震失学儿童捐款金额的部分抽样调查数据,扇形图是该校各年级人数比例分布图.那
1个回答

800×36%=288(人);

4+8+10+16+12=50(人);

4÷50=

4

50 ;

8÷50=

8

50 ;

10÷50=

10

50 ;

16÷50=

16

50 ;

12÷50=

12

50 ;

288×

4

50 ×5,

=23.04×5,

=115.2(元);

288×

8

50 ×10,

=46.8×10,

=468(元);

288×

10

50 ×15,

=57.6×15,

=864(元);

288×

16

50 ×20,

=92.16×20,

=1843.2(元);

288×

12

50 ×25,

=69.12×25,

=1728(元);

115.2+468+864+1843.2+1728,

=583.2+864+1843.2+1728,

=1447.2+1843.2+1728,

=3290.2+1728,

=5018.2,

≈5010(元).

故答案选:C.