Question

http://prntscr.com/51hs0v

is this b? @AriPotta

Answer 1

It says probability of not blue. It doesn't say probability of blue..

Answer 2

If it said probability of choosing blue then you would be correct.

Answer 3

There are 15 marbles all together
There are 3 blue marbles, so there are 12 non-blue marbles

the chance of picking an non-blue one will be
12/15 = 4/5
so d

Answer 4

thanks guys, I found the answer and oh thanks @abtster

Answer 5

So yes D is correct. :)

Answer 6

thanks

Answer 7

and also chances of choosing blue is 1/5 so chances of not choosing blue is 1- 1/5= 4/5