Two standard number cubes are thrown simultaneously. What is the probability that the combined result of the two cubes is exactly 7, or that it is less than (but not equal to) 6? Round answer to the nearest thousandth

3 answers

7 = 5,2; 2,5; 3,4; 4,3; 6,1; 1,6 = 6/36

6 < 1,1; 2,2; 1,2; 2,1; 1,3; 3,1; 1,4; 4,1; 2,3; 3,2 = 10/36

Either-or probabilities are found by adding the individual probabilities.
Two standard number cubes are thrown simultaneously. What is the probability that the combined result of the two cubes is exactly 7, or that it is less than (but not equal to) 6? Round answer to the nearest thousandth.
Two standard number cubes are thrown simultaneously. What is the probability that the combined result of the two cubes is exactly 7, or that it is less than (but not equal to) 6? Round answer to the nearest thousandth.