Question

Why do modern scientists use repeated experiments to develop and test hypotheses

Answer 1

Answer:

First part

Repeated experiments that show the same results are less likely to contain experimental errors.

Second part

Scientific discoveries are enabled by new technologies

Scientific discoveries may lead to new technologies

Answer 2

To make sure our answer is correct and accurate, we all need to solve multiple times. This process makes the accuracy of our answer more. 

Scientists want a more accurate answer, so if they get the same result after multiple attempts, they have a very accurate answer. That makes it more believable. 

That right there is the reason why they use multiple ways to test hypotheses.