could someone please help with these three? I got a few minutes left and I'm clueless IM IN NEED OF HELP!!

could someone please help with these three I got a few minutes left and Im clueless IM IN NEED OF HELP class=
could someone please help with these three I got a few minutes left and Im clueless IM IN NEED OF HELP class=
could someone please help with these three I got a few minutes left and Im clueless IM IN NEED OF HELP class=

Respuesta :

tonb

Answer:

Student 1 has the correct answer

Student 2 started of OK but then divides the number of white marbles by the number of non-white marbles, which is incorrect.

Student 3 reports a probability larger than 1 which is impossible. Also the answer is not in percentages.