Select the statement(s) that accurately support the need for repetition in the scientific investigation about whether rockets with three fins fly straighter than rockets with four fins.A gust of wind could push one of the rockets off course.Conducting multiple trials takes more time and effort.The investigator may not put the rocket on the launcher correctly.Multiple trials using both rockets will help eliminate random results.Launching a rocket several times increases the chance of losing the rocket when it is in the air.Preview
Question
Select the statement(s) that accurately support the need for repetition in the scientific investigation about whether rockets with three fins fly straighter than rockets with four fins.A gust of wind could push one of the rockets off course.Conducting multiple trials takes more time and effort.The investigator may not put the rocket on the launcher correctly.Multiple trials using both rockets will help eliminate random results.Launching a rocket several times increases the chance of losing the rocket when it is in the air.Preview
Solution
The statements that accurately support the need for repetition in the scientific investigation about whether rockets with three fins fly straighter than rockets with four fins are:
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"A gust of wind could push one of the rockets off course." This statement supports the need for repetition because external factors like wind can affect the trajectory of the rockets. By repeating the experiment, the investigator can ensure that the results are not due to these random occurrences.
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"The investigator may not put the rocket on the launcher correctly." This statement supports the need for repetition because human error can affect the results of the experiment. By repeating the experiment, the investigator can minimize the impact of these errors.
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"Multiple trials using both rockets will help eliminate random results." This statement directly supports the need for repetition in scientific investigation. By conducting multiple trials, the investigator can average the results, which helps to eliminate outliers and provide a more accurate conclusion.
The other statements do not directly support the need for repetition in the scientific investigation.
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Which of the following is an accurate statement about replication?There is no advantage to replicating an experiment more than once.The more times that scientists replicate an experiment, the more reliable the results of that experiment.When another scientist replicates an experiment, the results must match the first experiment.Conducting multiple trials in one experiment is replication.Preview
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