Math 6 o'clock 6= - Training Enrollment Network

Math 6 o'clock 6=

It can be simply inferred that the answer is the same.

1. Start with possible values (imprecise)

The value probabilities of the three scatterers are 3, 4, 5, 6, ..., 18, respectively, of which 3 ~ 10 * * 8,1~18 * * 8 each account for exactly half.

2. Start with the average (imprecise)

The average number of points obtained by one particle is (1+6)/2 = 3.5, so the average number of points obtained by three particles is 3 x 3.5 = 10.5, which is just the middle value between 10 and 1 1.

Step 3 refute

Assuming that the two probabilities are different, we assume that the probability of 3~ 10 is relatively small. Today, there is a naughty child. The points on the three scatterers change from 1, 2, 3, 4, 5, 6 to 6, 5, 4, 3, 2, 1. In other words, the original scatterers all changed from X point to 7-x point.

Then the original three scatterers add up to 3x, which becomes 2 1-3x.

In the past, the probability of 3~ 10 was relatively small, but now the probability of (21-10) ~ (21-3) is small, that is,1~18.

But if you think about it carefully, the original experimental method of sowing seeds is the same as the current experimental method, which is made of three grains with a score of 1~6, but the probability of 3~ 10 is relatively small, and now it is118 after being corrected by naughty children, which is a small contradiction!

So only two probabilities are equal.

4. Violence Law

Lists all additions from 3 to 10.

3 = 1+ 1+ 1

4 = 2+ 1+ 1

4 = 1+2+ 1

4 = 1+ 1+2

5 = 1+ 1+3 (3 species)

5 = 1+2+2 (3 kinds)

6 = 1+ 1+4 (3 kinds)

6 = 1+2+3 (6 species)

6 = 2+2+2