What is the probability of rolling a total greater than 7 using two rolls of a standard die?

Answer 1

15:36

Answer 2

You can count them:
There are 6 * 6 = 36 possibilities

(0)If you roll a 1 first, you can't do it.
(1)If you roll a 2 first, you can only do it if you roll a 6
(2)If you roll a 3 first, you need a 5 or a 6
(3)If you roll a 4 first, you need a 4, 5, or a 6
(4)If you roll a 5 first, a 3, 4, 5 or 6.
(5)If you roll a 6 first, a 2-6 will add up to 8 or more.

Add those numbers to get 15 ways to get more than 7 on 2 throws of a dice.

So the chances are 15 in 36 (Assuming a fair die where all rolls have equal chances).

15/36 = 5/12 = around 41.67%

Answer 3

Below is a chart for all the probablities of rolling totals on dice. Consider that one die has six sided, the other die has six sides, than the total number of possible combonations is 6 times 6... or 36. As the chart shows only one (frequency) of those combonations for the roll of 2 (dice total)... Six (frequency) of those combonations result in the roll of a 7 (dice total). So the six combonations for for 7, are A=1 B=6, A=2 B=5, A=3 B=4, A=4 B=3, A=5 B=2, and A=6 B=1. So to get a probability of rolls over 7 just add the frequency for 8, plus the frequency for 9, plus the frequency for 10, plus the frequency of 11, plus the frequency of 12... take that total and put that over 36 (the total possible combonations) and you have the probability of rolling a number greater than 7.

Your answer is: (5+4+3+2+1)/36 or 15/36


Dice Total Frequency Probability
2 1 0.027778
3 2 0.055556
4 3 0.083333
5 4 0.111111
6 5 0.138889
7 6 0.166667
8 5 0.138889
9 4 0.111111
10 3 0.083333
11 2 0.055556
12 1 0.027778
Total 36 1


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Answer 4

Following combinations for greater than 7 to come as a sum that is

2+6, 3+6, 4+6, 5+6, 6+6
3+5, 4+5, 5+5, 6+5
4+4, 5+4, 6+4
6+3, 5+3
6+2

so

(1/6*1/6)*15= 15/36

I hjope explanation helped!

Answer 5

6 : 12

=

1 : 2

Answer 6

15/36

Answer 7

there are 36 possibilities a. there are 5 possibilites sum of 6 : (1,5);(2,4);(3,3);(4,2);(5,1) so the probability sum of 6 = 5/36 coz you toss it 100 times, so the probability is = 5 / 36 * 100 b. do the same like a. c. and so on d, and so onnn e. and so onnnnn ^^

Answer 8

I'm pretty sure it's 15:36. Top of my class in math.

Answer 9

probability of rolling 8 or greater:

dice rolls:
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

= 15 out of 36 possible permutations, 1,1; 1,2; 1,3,etc..

=> 15/36