Asked by alex
You measure the mass of a 500 g standard on your balance four times. You get values of 455 g, 456 g, 454 g, and 455 g. Which of the following best describes your balance?
Answers
Answered by
Damon
We can not see your list. I would say wrong :)
Answered by
alex
sorry.
not precise and not very accurate
not precise but very accurate
precise and accurate
precise but not very accurate (i think its this one)
not precise and not very accurate
not precise but very accurate
precise and accurate
precise but not very accurate (i think its this one)
Answered by
Damon
precise but not very accurate (i think its this one)
yes, values close together but wrong
yes, values close together but wrong
Answered by
alex
Precision refers to the closeness of two or more measurements to each other...
Accuracy refers to the closeness of a measured value to a standard or known value....
So would it be precise and accurate?
Accuracy refers to the closeness of a measured value to a standard or known value....
So would it be precise and accurate?
Answered by
Damon
it is precise
it is NOT accurate
455 is NOT 500
it is NOT accurate
455 is NOT 500
Answered by
alex
ok.. thanks c:
Answered by
alex
Calculate the wavelength (in m) of a photon capable of exciting an electron in Li2+ from the state n= 3 to the state n=5
1.4239*10^-7 - correct
1.4239*10^-7 - correct
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