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).

- anonymous

- katieb

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- anonymous

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

- anonymous

11

- anonymous

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

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## More answers

- anonymous

8

- anonymous

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

- anonymous

:) thanks i have more.

- anonymous

okay. i'm happy to help.

- anonymous

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

- anonymous

well how many sides does a coin have?

- anonymous

2

- anonymous

so the probability of getting tails is 1/2.

- anonymous

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

- anonymous

... i honestly dont know

- anonymous

lol, 6.

- anonymous

lol okay then what?

- anonymous

so the probability of rolling a six is 1/6

- anonymous

okay lol thanks here comes the next one

- anonymous

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

how many shapes do you have all together?

- anonymous

13

- anonymous

how many of those 13 are circles?

- anonymous

4

- anonymous

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

- anonymous

you are very smart you have a instagram?

- anonymous

thank you.

- anonymous

you have a instagram?

- anonymous

simplify (7 – c)(–1)

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