TED-ED: What's the difference between accuracy and precision? - Matt Anticole

The video explores the concepts of accuracy and precision through the story of William Tell. It presents two variations of the tale to illustrate the difference between the two terms. The video explains how accuracy and precision are crucial in scientific endeavors, particularly in engineering and research. It highlights NASA's challenges in landing probes on Mars, showing how advancements have reduced uncertainty. The video concludes by emphasizing the importance of striving for both accuracy and precision.

In the story of William Tell, what was the main challenge he faced in the first variation?

• He doubted his skills, affecting his accuracy.

• His crossbow was stolen, affecting his precision.

• He was given a faulty arrow.

• He had to shoot a moving target.

What is the key difference between accuracy and precision?

• Both accuracy and precision are about correctness.

• Both accuracy and precision are about consistency.

• Accuracy is about correctness, while precision is about consistency.

• Accuracy is about consistency, while precision is about correctness.

Why is precision important in scientific research?

• It reduces the cost of experiments.

• It eliminates the need for accuracy.

• It allows for consistent results using the same method.

• It ensures that results are always correct.

How did NASA improve the precision of their Mars landings over the years?

• By reducing the number of landing scenarios.

• By enhancing spacecraft technology and simulations.

• By ignoring atmospheric conditions.

• By using larger landing ellipses.

What was the size of the landing ellipse for the Curiosity lander in 2012?

• 62 by 174 miles

• 4 by 12 miles

• 50 by 100 miles

• 10 by 20 miles