Hi I need lots of help with probability

According to the answer sheet, it seems like the integer of the denominator should be divided by 3; but I don’t get the idea how.

Thank you in advance!

Hi I need lots of help with probability

According to the answer sheet, it seems like the integer of the denominator should be divided by 3; but I don’t get the idea how.

Thank you in advance!

Hi

that’s strange my answer is 11/52 and i divided the denominator by 6 not 3

could someone find what is wrong with my reasoning?

possible tree diagrams:

-p-g-b

-p-b-g

-g-p-b

-g-b-p

-b-g-p

-b-p-g

P (pgb) = (5 * 10 * 11)/(26 * 25 * 24) = 11/312

Ptotal = 6 * 11/312 = 11/52

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