(Solved): A circular cross-section O ring has the dimensions shown in the figure. In particular, an AS 568A s ...

A circular cross-section $O$ ring has the dimensions shown in the figure. In particular, an AS 568A standard No. $240O$ ring has an inside diameter $D_{\mathrm{i}}$ and a cross-section diameter $d$ of $\begin{array}{l}{D}_i=3.383\pm 0.021\text{ in }\\ d=0.134\pm 0.0036\mathrm{in}\end{array}$ Estimate the mean outside diameter ${\stackrel{?}{D}}_o$ and its bilateral tolerance. The mean outside diameter is $\mathbf{x}$ in. The bilateral tolerance for the mean outside diameter is in.