Question

The density of a sample of metal is calculated using these three different sets of data: 0.6 g/mL, 2.4 g/mL, and 1.8 g/mL. If the true density of the metal is 1.2 g/mL, what can be said about these calculated density values?

The set is both accurate and precise.

The set is accurate but not precise.

The set is precise but not accurate.

The set is neither accurate nor precise.

Answer 1

Hmm..

Answer 2

http://www.mathsisfun.com/accuracy-precision.html
this is accuracy vs precision

Answer 3

i thought it was D
cause accuracy is all around the answer, but percision is right on the dot

Answer 4

Accuracy

Accuracy is how close a measured value is to the actual (true) value.

Precision

Precision is how close the measured values are to each other.

Answer 5

so ik it would be accurate but im still not sure about percision

Answer 6

Precision: is the values 0.6,2.4, and 1.8 close to each other?

Answer 7

kinda, yea

Answer 8

@hedyeh99

Answer 9

i would say precise and accurate. The only thing i am wary of is what they mean by close to each other or close to true value.

Answer 10

oh ok, Thanks!

Answer 11

Your welcome :)

Answer 12

Which statement best describes scientific laws?

Scientific laws are scientists' opinions of why events occur in nature.

Scientific laws describe specific relationships in nature without offering an explanation.

Scientific laws explain why natural events occur.

Scientific laws were theories that have been tested, proven, and adopted as laws.

Answer 13

Would this be B? @hedyeh99

Answer 14

Definitely not a, scientific theory is an explanation of the observed phenomenon, while a scientific law is a description of an observed phenomenon.

Answer 15

so it is not c

Answer 16

i think you are correct