A Luísa tem no bolso Dois berlindes verdes , três berlindes azuis e um berlinde amarelo ,A Luísa retira ao acaso um berlinde do bolso.Qual é a probabilidade de o berlinde extraído não seja amarelo


por favor ajuda ....​


Resposta :

;//////////////////////////////////////////////////////////////////////////////////////////////////////desculpe se estava errada, eu n'ao sei deletar a mensagem

\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\