AP BIOLOGY

Detailed explanation-1: -Repeating an experiment more than once helps determine if the data was a fluke, or represents the normal case. It helps guard against jumping to conclusions without enough evidence.

Detailed explanation-2: -Why is the ability to repeat experiments important? Replication lets you see patterns and trends in your results. This is affirmative for your work, making it stronger and better able to support your claims. This helps maintain integrity of data.

Detailed explanation-3: -Repeated trials are where you measure the same thing multiple times to make your data more reliable. This is necessary because in the real world, data tends to vary and nothing is perfect. The more trials you take, the closer your average will get to the true value.

Detailed explanation-4: -The repetition principle stabilizes the mean and the standard variation, so that statistics of the sample can well represent the parameters of the population. Thus, the statistical inference will be reliable.

Detailed explanation-5: -You can increase the validity of an experiment by controlling more variables, improving measurement technique, increasing randomization to reduce sample bias, blinding the experiment, and adding control or placebo groups.