@book{83926,
	author = {Sosa Martínez, Juan Camilo, and Ospina Forero, Luis Eduardo,},
	title = {Estadística descriptiva y probabilidades /},
	publisher = {Universidad Externado de Colombia,},
	year = {[2013]},
	address = {Bogotá :},
	edition = {Primera edición.},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/70328/}
}