dose	logdose	survival	Frequency
4.7	1.547562509	1	55
4.8	1.568615918	0	8
4.8	1.568615918	1	41
4.9	1.589235205	0	18
4.9	1.589235205	1	42
5	1.609437912	0	18
5	1.609437912	1	37
5.1	1.62924054	0	22
5.1	1.62924054	1	31
5.2	1.648658626	0	37
5.2	1.648658626	1	16
5.3	1.667706821	0	47
5.3	1.667706821	1	4
5.4	1.686398954	0	50