6. Calculate a density s absolute error: square Delta bar (p)=bar (E)cdot bar (rho )=0.0687cdot 1.49

To calculate the absolute error in density, we need to use the given formula:<br /><br />$\Delta \bar {p}=\bar {E}\cdot \bar {\rho }=0.0687\cdot 1.49$<br /><br />Let's calculate the absolute error:<br /><br />$\Delta \bar {p} = 0.0687 \cdot 1.49$<br /><br />$\Delta \bar {p} = 0.102183$<br /><br />Therefore, the absolute error in density is 0.102183.