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Mathematics 13 Online
OpenStudy (anonymous):

If two dice are rolled, what is the probability of getting two numbers greater than 4? A)1/3 B)1/6 C)1/36 D)1/9

Parth (parthkohli):

\(\Large \color{purple}{\rightarrow {2 \over 6} * {2 \over 6} = {4 \over 36} = {1 \over 9} }\) Probabilities are multiplied when you have to find the probability of a thing and a thing

OpenStudy (shubhamsrg):

total outcomes =36 favorable = (5,5),(5,6),(6,6) well my answer comes 1/12..guess either am going wrong somewhere or the the options are..or maybe the ques..

OpenStudy (zarkon):

(5,5),(5,6),(6,5),(6,6)

Parth (parthkohli):

@shubhamsrg The probability in the first one is 2 over 6 and the 2nd one again is 2/6. Now, we have to combine them, so we'll multiply.

OpenStudy (shubhamsrg):

ohh yes yes,,am sorry,,missed (6,5)..so its 1/9

Parth (parthkohli):

Yes, it is 1/9

OpenStudy (zarkon):

'Probabilities are multiplied when you have to find the probability of a thing and a thing' only when the events are independent. In this case they are.

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