Probability problem on Dice

Probability problem on Dice shortcut tricks are very important thing to know for your exams. Competitive exams are all about time. If you manage your time then you can do well in those exams. Most of us miss this thing. Few examples on probability problem on dice shortcuts is given in this page below. All tricks on probability problem on dice are provided here. We request all visitors to read all examples carefully. These examples here will help you to better understand shortcut tricks on probability problem on dice.

Before doing anything we recommend you to do a math practice set. Choose any twenty math problems and write it down on a page. Solve first ten math problems according to basic math formula. You also need to keep track of Timing. Write down the time taken by you to solve those questions. Now go through our page for probability problem on dice shortcut trick. After doing this go back to the remaining ten questions and solve those using shortcut methods. Again keep track of the time. The timing will be surely improved this time. But this is not enough. If you need to improve your timing more then you need to practice more.

You all know that math portion is very much important in competitive exams. It doesn’t mean that other topics are not so important. But only math portion can leads you to a good score. You can get good score only by practicing more and more. You should do your math problems within time with correctness, and only shortcut tricks can give you that success. Again it does not mean that you can’t do maths without using shortcut tricks. You may have that potential to do maths within time without using any shortcut tricks. But so many other people may not do the same. Here we prepared probability problem on dice shortcut tricks for those people. We always try to put all shortcut methods of the given topic. But if you see any tricks are missing from the list then please inform us. Your little help will help so many needy.

Here is some Probability on Dice Examples are given, Before going through this examples u should remember all probability formula and fact that are required here for solved the Example, Let do the Problems on Probability on Dice.

 

Examples 1:
Find Probability of getting a total more than 7,when sequentially throw of a pair of dice .
Answer :
Here n(S) is Total number of Possible outcomes So,
that is n(S) = ( 6 x 6 ) = 36.
Here E = Event of getting a total more than 7.

= {( 2, 6 )( 3, 5 )( 3, 6 )( 4, 4 )( 4, 5 )( 4, 6 )( 5, 3 )( 5, 4 )( 5, 5 )( 5, 6 )( 6, 2 )( 6, 3 )( 6, 4 )( 6, 5 )( 6, 6 )}
P(E)Probability of Event.
n(E) Total number of required outcomes.
n(S) is Total number of Possible outcomes So,

P(E) = n(E) / n(S) = 15 / 36 = 5 / 12.

 

Example 2:
A dice is thrown . What is the probability that the number shown on the dice is an divisible by 2 number ?
Answer :
S = { 1 , 2 , 3 , 4 , 5 , 6 },
n(S) = 6 .
E an number is divisible by 2 = { 2 , 4 , 6 } , n ( E ) = 3 .
So , P ( E ) = n ( E ) / n( S)  = 3 / 6 = 1 / 2 .

 

Example 3:
A dice is thrown . What is the probability that the number shown on the dice is an odd number ?
Answer :
S = { 1 , 2 , 3 , 4 , 5 , 6 },
n(S) = 6 .
E an odd number is = { 1 , 3 , 5 } , n ( E ) = 3 .
So , P ( E ) = n ( E ) / n( S)  = 3 / 6 = 1 / 2 .

 

Example 4 :
A dice is thrown . What is the probability that the number shown on the dice is an divisible by 3 number ?
Answer :
S = { 1 , 2 , 3 , 4 , 5 , 6 },
n(S) = 6 .
E an number is divisible by 3 = { 3 , 6} , n ( E ) = 2 .
So , P ( E ) = n ( E ) / n( S)  = 2 / 6 = 1 / 3.

 

Example 5:
A dice is thrown . What is the probability that the number shown on the dice is an even number ?
Answer :
S = { 1 , 2 , 3 , 4 , 5 , 6 },
n(S) = 6 .
E an even number is  = { 2 , 4 , 6 } , n ( E ) = 3 .
So , P ( E ) = n ( E ) / n( S)  = 3 / 6 = 1 / 2 .

 

 

 

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