How similar are these two sentences, on a scale from 0-5 (0 is "not similar" and 5 is "very similar")?

Some studies suggest open-space environments lower working efficiency with 2-10% due to interruptions, stress and noise.
There's an iPhone app called Groups which might be helpful.

OPTIONS:
- 0
- 1
- 2
- 3
- 4
- 5
0