"Here is a solid bar made of metal. The bar is a cuboid. The height of the bar is h cm. The base of the bar is a square of side d cm. The mass of the bar is M kg.
d = 8.3 correct to 1 dp
M = 13.91 correct to 2dp
h = 84 correct to nearest integer
Find the value of the density of the metal to an appropriate degree of accuracy. Give your answer in g/cm^3. You must explain why your answer is to an appropriate degree of accuracy."
So, I know density=mass/volume.
I've found the upper bound density to be 2.44843646 g/cm^3 and the lower bound density to be 2.360159389 g/cm^3.
Would I then find the mean of these to find the density to an appropriate degree of accuracy? If not, can someone help with how I'd do it? I always struggled with these appropriate degree of accuracy questions.