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).

Question

anonymous · Answer

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

anonymous · Answer

11

anonymous · Answer

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

anonymous · Answer

8

anonymous · Answer

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

anonymous · Answer

:) thanks i have more.

anonymous · Answer

okay. i'm happy to help.

anonymous · Answer

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

anonymous · Answer

well how many sides does a coin have?

anonymous · Answer

2

anonymous · Answer

so the probability of getting tails is 1/2.

anonymous · Answer

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

anonymous · Answer

... i honestly dont know

anonymous · Answer

lol, 6.

anonymous · Answer

lol okay then what?

anonymous · Answer

so the probability of rolling a six is 1/6

anonymous · Answer

okay lol thanks here comes the next one

anonymous · Answer

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

anonymous · Answer

how many shapes do you have all together?

anonymous · Answer

13

anonymous · Answer

how many of those 13 are circles?

anonymous · Answer

4

anonymous · Answer

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

anonymous · Answer

you are very smart you have a instagram?

anonymous · Answer

thank you.

anonymous · Answer

you have a instagram?

anonymous · Answer

simplify (7 – c)(–1)