# Enter data
arsenic = c(17.6,10.4,13.5,4,19.9,16,12,12.2,11.4,12.7,3,10.3,21.4,19.4,9,6.5,10.1,8.7,9.7,6.4,
	9.7,63,15.5,10.7,18.2,7.5,6.1,6.7,6.9,0.8,73.5,12,28,12.6,9.4,6.2,15.3,7.3,10.7,15.9,
	5.8,1,8.6,1.3,13.7,2.8,2.4,1.4,2.9,13.1,15.3,9.2,11.7,4.5,1,1.2,0.8,1,2.4,4.4,2.2,2.9,
	3.6,2.5,1.8,5.9,2.8,1.7,4.6,5.4,3,3.1,1.3,2.6,1.4,2.3,1,5.4,1.8,2.6,3.4,1.4,10.7,18.2,
	7.7,6.5,12.2,10.1,6.4,10.7,6.1,0.8,12,28.1,9.4,6.2,7.3,9.7,62.1,15.5,6.4,9.5)