Question

two groups of scientists test whether the angle of a ramp affects how far a toy car rolls. group a finds that when the ramp is steeper, the car rolls 150 cm. on a less steep ramp, it rolls 80 cm. group b repeats the experiment and finds that on the steep ramp the car rolls 140 cm, and on the less steep ramp it rolls 85 cm. what is the best conclusion based on these results? the experiments are reliable because both groups found that a steeper ramp makes the car roll farther. the experiments are invalid because the car did not roll the exact same distance in both trials. group b should ignore their results since they were not identical to group a’s.

Explanation:

Reliability in experiments is about consistent trends. Both groups showed that a steeper ramp leads to the car rolling farther, despite minor differences in measurements due to experimental error. Minor variations don't invalidate the overall trend.

Answer:

The experiments are reliable because both groups found that a steeper ramp makes the car roll farther.