现已测得正常人的血中嗜碱性粒细胞数如下，则据此资料可算得血中嗜碱性粒细胞数95%频数分布范围为一指正常人血中的嗜碱性粒细胞\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n

X	0	1	2	3	4	合计
f	1369	358	55	8	2	1792
累计(%)	74.6	96.4	99.4	99.9	100.0