Question

40:32
Four students measure the mass of a standard mass
that has an accepted value of 150.0 g. They post their
results in a table.
Which statements about the data are true? Check all that
apply.
Rosa and Tran have the most accurate data.
Student
Rahul
Tran
Lea
Rosa
Mass (g)
152
150
153.8
Tran's value is more precise than Rahul's.
Lea's and Rosa's data have the same degree of
precision.
149.9
u Tran has the only accurate result.
Rahul's value is more accurate but less precise than
Lea's
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Answer 1

Answer:

See answers below

Explanation:

Recall that accuracy describes how close the measurement is to the real value, while precision depends on the number of significant figures that the instrument allows to measure.

Given these concepts, and the information provided:

Rahul   Tran   Lea    Rosa    

152      150     153.8    149.9   (g)

we can mark the following:

Rosa and Tran have the most accurate data. TRUE (they show the numbers closer to the real one of 150.0 gr)

Tran's value is more precise than Rahul's.  FALSE (they both have the same precision to the gram)

Lea's and Rosa's data have the same degree of  precision. TRUE (both have precision to a tenth of a gram)

Tran has the most accurate result. TRUE (the real value is 150.0)

Rahul's value is more accurate but less precise than  Lea's. TRUE (Lea's is 3.8 away from the real value, while Rahul's is 2 away)