Which of the following affect the soundness of your decision? (can be more than one of the following)

1)Precipitation from the fog can lower the coefficients of friction.
2) Newton's second law does not apply to this situation
3) Reaction time of the drivers is not taken into account
4) Drivers cannot be expected to obey the posted speed limit

Amethod of procedure that has characterized natural science since the 17th century, consisting in systematic observation, measurement, and experiment, and the formulation, testing, and modification of hypotheses.

120v is the answer i am positive tell me if this was correct

The scientist was trying to demonstrate that humans can introduce their own biases into an experiment. bias is a prejudice in favor of one thing compared with the another.in this case, the bias is believing that mice with higher intelligence would solve the maze better.  bias in science should be avoided as it is not desirable that research becomes influenced by scientists personal beliefs.