Question

when an experiment is repeated and the new results are different from the original results what may likely be inferred?
a additional test/trials are needed.
b both results are wrong due to the discrepancy.
c the hypothesis is incorrect and must be modified.
d the first must be inaccurate because you are sure the second results are correct.

Explanation:

When experimental results differ in repeated trials, additional tests/trials are often needed to ensure accuracy. Jumping to conclusions (like assuming one result is wrong without more data) is not scientific. Options B, C, and D make hasty assumptions. Option A is the most scientific approach as it calls for more data collection.

Answer:

A. Additional test/trials are needed.