The following students measure the density of a piece of lead three times. the density of lead is actually 8.9 g/cm3. considering all of the results, which person's results are both accurate and precise?

a. jenny: 8.55 g/cm3, 8.34 g/cm3, 8.04 g/cm3

c. lila: 8.89 g/cm3, 8.91 g/cm3, 8.92 g/cm3

b. brad: 8.63 g/cm3, 8.64 g/cm3, 8.65 g/cm3

d. none of the above have precise and accurate measurements.

Question

Physics

Janelle Kelley

19 April, 03:18

The following students measure the density of a piece of lead three times. the density of lead is actually 8.9 g/cm3. considering all of the results, which person's results are both accurate and precise?

a. jenny: 8.55 g/cm3, 8.34 g/cm3, 8.04 g/cm3

c. lila: 8.89 g/cm3, 8.91 g/cm3, 8.92 g/cm3

b. brad: 8.63 g/cm3, 8.64 g/cm3, 8.65 g/cm3

d. none of the above have precise and accurate measurements.

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Answers (1)

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Beanpole · Answer 1

C. Lila's results are both accurate and precise, since not only are her values precise in accordance with each other, but they are the closest out of all the values to the true density of lead.