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Mathematics 16 Online
OpenStudy (anonymous):

A. what is the probability of selecting a red marble, replacing it, and then selecting a blue marble? show your work

OpenStudy (anonymous):

OpenStudy (anonymous):

@Bandit56

OpenStudy (anonymous):

@texaschic101

OpenStudy (anonymous):

@undeadknight26

OpenStudy (anonymous):

count how many marbels are in there, and how may of each color

OpenStudy (anonymous):

when your done list them here

OpenStudy (paki):

total marbles are 16.... so the probability of first selecting a red is P(r) = red marbles / all the marbles.... P(r)= 4/16= 1/4.... ok.... @Alex_berry

OpenStudy (anonymous):

red:4 blue:7 green:5 all:16

OpenStudy (anonymous):

well, paki solved it for you

OpenStudy (paki):

and P(b) = blue marbles / all the marbles p(b)= 7/16

OpenStudy (paki):

and The probability of selecting a red and then a blue is P(r) x P(b).... P(red,blue) = 1/4 * 7/16 = solve now :-)

OpenStudy (anonymous):

7/64

OpenStudy (anonymous):

am i right

OpenStudy (paki):

yup 7/64... rite...

OpenStudy (anonymous):

thanks

OpenStudy (paki):

pleasure

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