First of all, let's talk about the data analysis part: (data collection)
In fact, many problems in data analysis can be solved by formulas. Just memorize all the formulas and use them flexibly on the basis of rote memorization. Be sure to brush more real questions here. Maybe you will make a lot of mistakes at first. It doesn't matter. The more mistakes you make, the more room for improvement. Digest and absorb every wrong question, so that you can learn it well after brushing the information.
Quantity relationship, because the calculation is time-consuming, it is recommended to put it at the end. If time is too late, choose an option. If you still have a few minutes to do it, look at the question with the shortest stem and the best formula (such as set). It is best to do 2-3 questions. As long as you have an idea, you can't make mistakes in mathematical operations, and the rest of the questions are multiple-choice questions. Options not selected.
What level do you need to test civil servants' mathematics?