**12.5 homework** Name: _______________________________
A box contains eight blue index cards, four yellow index cards and two pink index cards. Cards are taken at random from the box, one at a time, and then put back. Find each probability.
1) Is this event independent or dependent? _____________________
2) P(blue, then pink) 3) P(yellow, then pink)
4) P(blue, then yellow) 5) P(both yellow)
A bag contains three red buttons, six black buttons and eight white buttons. Buttons are taken at random and not replaced. Find each probability.
6) Is this event independent or dependent? _____________________
7) P(red, then black) 8) P(white, then black)
9) P(red, then white) 10) P(both red)
Four white socks, six blue socks and eight gray socks are in a drawer. Without looking, two socks are pulled from the drawer. Find each probability.
11) Independent or dependent? 12) P(both white)
13) P(both blue) 14) P(gray and white)
Becky opens up a bag of M&M’s and decides to count and organize them by color. She finds:
Brown = 8, Red = 6, Orange = 4, Yellow = 7, Green = 5, Blue = 10
**Find each probability when randomly pulling out a single candy.**
1) P(brown) 2) P(not blue)
3) P(green or yellow) 4) P(not red or blue)
**Find each probability if now Becky randomly takes out one candy, puts it back into the bag, and then pulls out a second candy. **
5) P(green, then red) 6) P(two blue)
7) P(brown, then orange) 8) P(red, then yellow, then green)
**Find each probability if now Becky decides not to keep putting the M&M’s back in the bag. Instead she will take one out and eat it, and then get another one. **
9) P(green, then red) 10) P(two blue)
11) P(brown, then orange) 12) P(red, then yellow, then green) |