Question

Suppose a bag of marbles has 4 green, 2 red, 5
yellow, 1 brown, and 7 blue marbles. What is the
probability of picking a blue marble, not replacing it, and picking a brown marble?

Answer 1

green : 4/19
red : 2/19
yellow : 5/19
brown 1/19
blue: 7/19

Answer 2

how do i do that? i have a TI-nspire cx and a TI -spire with 2 keyboards.

Answer 3

i get confused because i understand the percentages but wouldn't it lessen because it says ''What is the probability of picking a blue marble, not replacing it, and picking a brown marble? '' and there are 7 blue so if you dont put them back it would be 12
so would it be \[\frac{ 7 }{12 } x \frac{ 1 }{ 12 }\] ??
the 1 counts for the brown