Measurement and Matter

Distinguishing accuracy and precision

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Four research teams measured the speed at which signals travel down a certain type of nerve fiber, and what each team wrote in its team notebook is shown in the table below.

Suppose a later and more reliable measurement gives $99\frac{m}{s}$ for the signal speed in the same type of nerve fiber. Decide which of the earlier measurements was the most accurate, and which was the most precise.

$\backslash$table$[[$team$,\backslash$table$[[$what was written$],[$in the notebook$]],\backslash$table$[[$most accurate$],[$measurement$]],\backslash$table$[[$most precise$],[$measurement$]]],[A,109.\frac{m}{\frac{?}{?}}s,,$