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Mathematics 11 Online
OpenStudy (anonymous):

your sock drawer holds 1 tan ; 24 brown ; and 2 beige socks ; without looking , you grab one sock ; find the probbability that the sock is NOT beige . i got 25/27 is this correct ?

OpenStudy (amistre64):

i assume these are single socks? or pairs of socks?

OpenStudy (anonymous):

yes it is correct 25/27

OpenStudy (anonymous):

single socks :)

OpenStudy (amistre64):

then yes, that is correct, 27 socks total, and 2 ARE beige so 25 are NOT beige. 25/27

OpenStudy (anonymous):

yes :) ohkay guys here another :) suppose you roll two dice . Find the number of elements in the event space of rolling a sum of 2 :o

OpenStudy (anonymous):

so you mulitply the dice 36 or 12 ? first .

OpenStudy (anonymous):

then find how many can make 2 . which is only 1 . {1,1}

OpenStudy (anonymous):

the only sum that can be is 1+1. And from the first dice the probability is 1/6 also in the second dice it is 1/6 so in the end we get 1/36

OpenStudy (anonymous):

so it would be 1/36 or 1/12 ? correct or no ?

OpenStudy (anonymous):

1/36 is the correct answer :)

OpenStudy (anonymous):

because you multiply 1/6 and 1/6 and you get 1/36

OpenStudy (anonymous):

that was incorrect :(

OpenStudy (amistre64):

1 2 3 4 5 6 1 x 2 3 4 5 6 there is only 1 in 36 of rolling a sum of 2 :)

OpenStudy (anonymous):

it must be true :)

OpenStudy (amistre64):

the number of elements in the event space is 1

OpenStudy (amistre64):

perhaps?

OpenStudy (anonymous):

yes of course :) but the probability is 1/36

OpenStudy (amistre64):

"Find the number of elements in the event space "

OpenStudy (anonymous):

yea but it said wronge :( i hate this ; but its ok :) lets try this ; again your sock drawer hold 5 red ; 11 tan and 7 brown socks ; without looking you grab one sock ; find the probability that the sock is NOT brown . :)

OpenStudy (anonymous):

ohh yeaaa sorry i didnt read the question :(

OpenStudy (anonymous):

16/23

OpenStudy (anonymous):

the probability

OpenStudy (anonymous):

is it ok ?

OpenStudy (anonymous):

yu are corrrect :) ok ready for the last one :)

OpenStudy (anonymous):

bring it on :)

OpenStudy (anonymous):

you sock drawer hold 2 tan ; 15 brown ; and 10 beige socks ; Without looking you grab one sock ; find the probbability that the sock is beige.!

OpenStudy (anonymous):

10/27?

OpenStudy (anonymous):

yess :) you started understanding them i guess :)

OpenStudy (anonymous):

YAY :D I PASSSED ! thank you sooo mcuh!

OpenStudy (anonymous):

you're welcome.Glad you passed :)

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