6.7 1%。 The winning probability of the first prize (6+ 1) is as follows: red ball 33, blue ball 6 times 161=17721088 = 0.0000056%; The winning probability of the second prize (6+0) is: red ball 33, blue ball 6 times 16, 0 =15/17721088 = 0.0000846%; The winning probability of the third prize (5+ 1) is: red ball 33, blue ball 5 times 16 1= ...

Winning probability of two-color ball:

There are 1 possibilities for the first prize, and the probability is117,7210,088.

There are 15 possibilities for the second prize, and the probability is probably11,18 1, 406.

There are 162 possibilities for the third prize, and the probability is probably1109389.

There are 7695 possibilities for the fourth prize, and the probability is about 1/2303.

There are 137475 possibilities for the fifth prize, and the probability is about1129.

There are 1 0,043,640 possibilities for the sixth prize, and the probability is about116.

Practical points of double betting

1, a diversion. Choose 7-8 numbers, each number is different, and you can win by implementing decentralized encirclement.

2. Divide troops and fight together. Choose 8-9 numbers, each note has the same number, only a few different numbers, but the number is not selected in the empty space, in order to achieve the purpose of dividing troops and encirclement.

3. Around the object. The selection number is 9- 10, which generally includes 3-4 notes, and each note number is only 3-4 different. The purpose is not only to enclose the winning numbers, but also to prevent accidents (there is no enclosed number for each bet).

4. Iron wall encirclement. Choose the number11-12, 2-3. There are only a few different numbers in each note. In order not to meet the small prize, try to win the big prize.

5. burn your bridges. Select a number above 13 or 13. Choose only Shui Xin's number, or you will lose the game or win the prize.

Step by step. There are more or less numbers to choose from, which can contain several notes. Each note consists of two hyphens and three hyphens. The numbers have the same part and different parts, so as to prevent the winning numbers from escaping the net due to the serial number.

7. North-South attack. How many numbers have been selected; It can contain several notes, and each note number consists of large, medium and small, giving consideration to both the front and the back, forming an encirclement.