How to calculate the winning probability of two-color ball lottery

The lottery winning probability of Tesco is calculated according to the lottery winning rules and lottery sales. Specifically, six ball numbers, including five red ball numbers and 1 blue ball numbers, need to be correctly guessed in the middle and two-color ball big Tesco lottery. If you guess all the numbers correctly, you will win the first prize (lottery). The winning probability of the first prize is1175223510. If you can only guess some numbers, you may get second prize, third prize, fourth prize, fifth prize and other awards according to the number and position of the numbers you guessed. The winning probability and bonus amount of different awards are different. Lottery sales will also affect the award setting and winning probability.