Accuracy and Precision in Science

What does accuracy refer to in scientific endeavors?

• How consistently a result can be achieved using the same method.

• How close a measurement or result is to the true or correct value.

• The level of detail in a measurement tool.

• The number of significant figures in a reported value.

What does precision refer to in scientific endeavors?

• How close a measurement or result is to the true or correct value.

• The ability to hit the exact center of a target every time.

• How consistently a result can be achieved using the same method.

• The overall correctness of an experiment's design.

In the first variation of the William Tell story, where his crossbow was stolen and he used an inferior one, what was the characteristic of his shots?

• High accuracy and high precision.

• Low accuracy and low precision.

• High precision but low accuracy.

• High accuracy but low precision.

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How did advancements in technology and simulations impact NASA's Mars lander missions between 1976 (Viking) and 2012 (Curiosity)?

• They allowed for larger landing ellipses, increasing the chance of finding interesting sites.

• They reduced the size of the landing ellipse, enabling more precise targeting of specific areas.

• They eliminated the need for computer simulations, relying solely on real-time data.

• They shifted the focus from precision to accuracy, making landings less critical.