6. https://campusvirtual.ull.es/ocw/pluginfile.php/6032/mod_resource/content/1/tema8/PR8.1-probabilidad.pdf7. http://www.aulaclic.es/estadistica-excel/t_4_48.htm8.9.https://www.google.com.pe/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0CBsQFjAAahUKEwjVtqyW7fTGAhWJjQ0KHTHZANQ&url=http%3A%2F%2Futpcontabilidad08.jimdo.com%2Fapp%2Fdownload%2F4405531365%2FES0502%2BLa%2BDistribucion%2BBinomial%2BRevisado.doc%3Ft%3D1283303413&ei=FsGyVdXTJImbNrGyg6AN&usg=AFQjCNEYWBbWUUnHst4lcG6_qz8mXJW-Dw&bvm=bv.98717601,d.cGU10.https://books.google.com.pe/books?id=-ZNtJau4lpIC&pg=PA402&lpg=PA402&dq=la+probabilidad+de+hace+una+venta+de+cierto+vendedor&source=bl&ots=TCdiiZCSBm&sig=Y5Y0PgPgB0Spzfbls8tIhwF8uLg&hl=es&sa=X&ved=0CCwQ6AEwAmoVChMIl6Hshu70xgIVxf2ACh1gwgRl#v=onepage&q=la%20probabilidad%20de%20hace%20una%20venta%20de%20cierto%20vendedor&f=false