Question

A bag has 2 yellow, 7 red, and 1 green marble. What is the probability of picking a red marble, replacing it, and then picking another red marble?
Answers:
1/25
49/100
7/100
1/50

Answer 1

@Zarkon

Answer 2

you can do this...very similar to the other one you did

Answer 3

i got 7/100

Answer 4

no

Answer 5

what is the prob of red on the first draw

Answer 6

7/10

Answer 7

ok....what is the prob you get a red on the 2nd draw

Answer 8

7/9

Answer 9

?

Answer 10

remember you replaced the marble

Answer 11

7/11

Answer 12

you don't have 11 marbles

Answer 13

So 8/10?

Answer 14

you don't have 8 red

Answer 15

I don't know

Answer 16

7/10...the same as the first draw

Answer 17

because you replaced the marble

Answer 18

ohhhh I see so its 49/100

Answer 19

there are independent trials

Answer 20

correct

Answer 21

sweet! your awesome