## brandon4321 2 years ago Suppose you choose a marble from a bag containing 3 red marbles, 3 white marbles, and 5 blue marbles. You return the first marble to the bag and then choose again. Find P(red and blue).

1. brookie5150

well, what do you get when you add all the marbles?

2. brandon4321

11

3. brookie5150

okay and how many of those 11 are red or blue?

4. brandon4321

8

5. brookie5150

so the probability of choosing a red or a blue marble would be 8/11. c:

6. brandon4321

:) thanks i have more.

7. brookie5150

okay. i'm happy to help.

8. brandon4321

You toss a coin and roll a number cube. Find P(tail and a six).

9. brookie5150

well how many sides does a coin have?

10. brandon4321

2

11. brookie5150

so the probability of getting tails is 1/2.

12. brookie5150

now for the next one. how many sides does the number cube have?

13. brandon4321

... i honestly dont know

14. brookie5150

lol, 6.

15. brandon4321

lol okay then what?

16. brookie5150

so the probability of rolling a six is 1/6

17. brandon4321

okay lol thanks here comes the next one

18. brandon4321

Anthony is making a collage for his art class by picking shapes randomly. He has five squares, two triangles, two ovals, and four circles. Find P(circle is chosen first

19. brookie5150

how many shapes do you have all together?

20. brandon4321

13

21. brookie5150

how many of those 13 are circles?

22. brandon4321

4

23. brookie5150

sooo, the probability of choosing a circle is 4/13.

24. brandon4321

you are very smart you have a instagram?

25. brookie5150

thank you.

26. brandon4321

you have a instagram?

27. brandon4321

simplify (7 – c)(–1)