by the calculation

[Ashiuhto]

Are the following sentences acceptable?

1. To distinguish whether they’re addicted or not, we designed 10 questions and 5 different frequencies.
2. We also requested them to write down their gender.
3. By the calculation, the survey showed no matter what gender they are, most of the eighth grades are addicted to the Internet.

[Rover_KE]

Are the following sentences acceptable?

1. To determine whether they’re addicted or not, we designed 10 questions and 5 different frequencies(it's not clear what you mean by this).

2. We also asked them to write down their gender.

3. The results of the survey showed that no matter what gender they are, most of the eighth graders are addicted to the internet.

Rover