High 3 sampling method

1. Number the listening questions, and then extract 1 number from them each time for 3 consecutive times;

2. Number the solutions, and then extract 1 number from them for five consecutive times;

3. Number the test questions, and then extract the number 1 from them for 2 consecutive times.

This ensures the randomness of different questions each time.

Read this book again and you will understand.

Senior three mathematics 19 page