Question

Jaime calculates the density of a slab of aluminum (Al) metal.

What information does Jaime need to evaluate the accuracy of his calculation?
the accepted value for the density of aluminum
the dimensions of the slab of aluminum that he used
a bar graph that shows the densities of different slabs of aluminum
a line graph that shows how the density of aluminum varies with temperature

Answer 1

the accepted value for the density of aluminum

Accuracy measures how close Jaime's calculated value is to the true (accepted) value, so he needs the accepted density for comparison.