Question

determine the validity of the following experiment based on the trend of the results. chart: acceleration (m·s⁻¹) vs pulling force (n) with data points and best fit line a. experiment’s results lie close to the best fit line and have no noticeable outliers; it is reliable. b. experiment’s results lie close to the best fit line and have no noticeable outliers; it is not reliable. c. experiment’s results vary greatly from the best fit line; this variation means the data is not reliable. d. experiment’s results vary greatly from the best fit line; this variation means the data is reliable.

Explanation:

In an experiment, if the results lie close to the best - fit line and there are no noticeable outliers, it indicates that the data points are consistent. Consistent data points suggest that the experiment is reliable as it shows a stable relationship between the variables (pulling force and acceleration in this case). If data points vary greatly from the best - fit line (outliers), it may imply errors in measurement or other confounding factors, making the data less reliable.

Answer:

A. Experiment's results lie close to the best fit line and have no noticeable outliers; it is reliable.