Calculate the probably of a repair taking $0\mathrm{.}1$ hours to complete.

Place your calculation in cell C$5.$

Use the EXPON.DIST function.

Reference the required service time $($B$5)$ and exponentially distributed with an average rate $($lambda$)$ of $0\mathrm{.}75($C$2)$ in your formula.

Reuse your formula to calculate the individual probabilities of the other required service times in B$5$:B$44.$