A bag contains 8 red marbles, 4 white marbles, and 5 blue marbles. You draw one marble at random. Find P(red and blue).

40/17
0
12/17
13/16

Question

A bag contains 8 red marbles, 4 white marbles, and 5 blue marbles. You draw one marble at random. Find P(red and blue).

40/17
0
12/17
13/16

anonymous · Answer

i think its D. but they  add up to 17. so it wouldn't be.

anonymous · Answer

anonymous · Answer

mathstudent55 · Answer

I think D is 13/17, not 13/16

anonymous · Answer

yeah.. I agree with @mathstudent55

anonymous · Answer

thats what it says

mathstudent55 · Answer

13/16 is correct?

anonymous · Answer

it says 13/17 on the options. theres no 13/16 options

mathstudent55 · Answer

Your last option is 13/16.

anonymous · Answer

Typo?

mathstudent55 · Answer

Is the question P(red and blue) or P(red or blue)?

anonymous · Answer

red and blue

anonymous · Answer

So is it 0 then? You can't have a red and blue marble!

mathstudent55 · Answer

No marble is red _and_ blue. If you can only pick one, it cannot possibly be red and blue, so probability is 0.

anonymous · Answer

Tricky, tricky..

mathstudent55 · Answer

This way, it's ok for the last option to be 13/16.

anonymous · Answer

@mathstudent55 You deserve a medal from @vivianrush