A vibration generator causes a point on a metal rod to oscillate. A student uses a video recording to measure the time for the point to complete 16 oscillations. The measurement is repeated three times.
| Measurement | Time for 16 oscillations (s\mathrm{s}s) |
|---|---|
| 1 | 6.3 |
| 2 | 6.4 |
| 3 | 6.5 |
Which calculation gives the frequency of the oscillations?
6.3+6.4+6.516×3 Hz\dfrac{6.3+6.4+6.5}{16\times3}\ \mathrm{Hz}16×36.3+6.4+6.5 Hz
16×3(6.3+6.4+6.5)/3 Hz\dfrac{16\times3}{(6.3+6.4+6.5)/3}\ \mathrm{Hz}(6.3+6.4+6.5)/316×3 Hz
166.3+6.4+6.5 Hz\dfrac{16}{6.3+6.4+6.5}\ \mathrm{Hz}6.3+6.4+6.516 Hz
16×36.3+6.4+6.5 Hz\dfrac{16\times3}{6.3+6.4+6.5}\ \mathrm{Hz}6.3+6.4+6.516×3 Hz