HELP Inga and Aileen are measuring the temperature of frozen hydrogen. Inga is using a thermometer that has increments of 0.25∘F, and she gets a measurement of 3.25∘F. Aileen is using a thermometer that has increments of 0.125∘F, and she gets a measurement of 3.375∘F.

Which thermometer has less uncertainty?

1. Aileen's thermometer, because it has smaller increments.

2. Neither, because the uncertainty in both thermometers is the same.

3. Inga's thermometer, because 3.25∘F is less than 3.375∘F.

4. Neither, because Inga and Aileen had different measurements.