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Mathematical equation problem of grade eight and grade two.
Solution: let the number of people without statistics be x,

According to the meaning of the question, the number of people who failed the statistics twice is the same. Accordingly, the equation can be listed:

(40+X)*( 1-92%)= 40 *( 1-90%)

Simplification: (40+X)*8=40* 10

8X=80

X= 10

Answer: The number of people without statistics is 10.

I hope my answer can help you!