Question

Celine is playing a game at the school carnival. There is a box of marbles, and each box has a white, a green, a blue, and an orange marble. There is also a fair 12-sided die labeled with the numbers 1 through 12. How many outcomes are in the sample space for pulling a marble out of the box and rolling the die?

48
32
16
8

Answer 1

@itsbribro

Answer 2

@phi

Answer 3

you multiply the number of different colors of marbles times the number of sides on the die
can you do that?

Answer 4

48?

Answer 5

yes

Answer 6

A?

Answer 7

yes

Answer 8

ok next! :)

Answer 9

There are 7 cards with a picture of a rose and 2 cards with a picture of a daisy. Alfa keeps all the cards face down on the table with the pictures hidden and mixes them up. She then turns over one card face up and finds the picture of a rose on it. She removes this card from the table and turns over another card without looking. What is the probability that the card that Alfa turns over has a rose on it?

6 over 9
6 over 8
7 over 9
7 over 8

Answer 10

@phi

Answer 11

"So initially there are 9 cards in total, 7 roses and 2 daisies, giving the probability of drawing a rose 7/9 and a daisy 2/9. Then she draws a rose and removes it. Now there are 8 cards in total. So what would the probability of drawing a rose be now?"

Answer 12

7/8?

Answer 13

"Almost, there aren't 7 roses anymore because 1 was removed. There would now be 6 left."

Answer 14

b?

Answer 15

Yup 6/8 is your answer ^_^

Answer 16

Peter is giving marbles to some children at a carnival. He has 5 red marbles, 4 blue marbles, and 3 yellow marbles. If Peter selects a marble randomly without looking, what is the probability that he will give a blue marble to the first child and then a yellow marble to the second child?

4 over 12 plus 3 over 12 is equal to 7 over 12
4 over 12 plus 3 over 11 is equal to 80 over 132
4 over 12 multiplied by 3 over 12 is equal to 12 over 144
4 over 12 multiplied by 3 over 11 is equal to 12 over 132

Answer 17

IS this a test?

Answer 18

no a study guide :)

Answer 19

The initial number of marbles is 12, of which 4 are blue. Therefore the probability of selecting a blue marble first is 4/12. Having selected a blue marble, there is a total of 11 marbles remaining of which 3 are yellow. Therefore the probability of a yellow marble being selected second is 3/11.
The required probability is therefore given by
\[\frac{ 4 }{ 12 } * \frac{ 3 }{ 11 }\]

Answer 20

12/132

Answer 21

Which is which option?

Answer 22

D!

Answer 23

At a conference for 500 people, 20% of the participants are French, 50% are Americans, 5% are Germans, and are of other nationalities. How many French participants are at the conference?

10
20
100
120

Answer 24

@just_one_last_goodbye

Answer 25

100 its easy cause 20 percent is 1/5

Answer 26

Which is answer choice?

Answer 27

C?

Answer 28

@just_one_last_goodbye

Answer 29

Actually B