00:01
An ordinary fair dye is a cube with the numbers one through six on the sides represented by paint spots.
00:09
Imagine that such a dye is rolled twice in succession that the face values of the two die out of two rows are added together.
00:16
So the sum recorded as the outcome of the single trial of the random experiment.
00:19
There is a probability that the sum is greater than seven.
00:22
That's event a.
00:23
So if the sum is greater than seven, sum is greater than seven.
00:28
And so it definitely means that sum is greater than equal to 8.
00:34
So let's see that what is the maximum number which can appear on a die? that's minimum number which is 1 and maximum is 6.
00:43
So the minimum sum is when both the die roll 1, which is 1 plus 1, so 2, and when both the die roll 6, their sum is 12.
00:55
This is the maximum number.
00:57
And we need all the sum which are greater than equal to eight.
01:00
So definitely it's eight, nine, ten, eleven or twelve.
01:03
So what are the first of what are the total outcomes? total outcomes when two die are rolled or one die is rolled in succession.
01:13
That's six times six because out of six options we can get anyone...