In a PERT problem our project has an expected completion time of $80$ days and a standard deviation of $3$ days. What is the probability of us finishing in $86$ days or sooner?

The normal curve data that we have been using comes from the chart on page $866($Table A in Appendix B$).$

Group of answer choices

$95\mathrm{.}8\%$

$96\mathrm{.}2\%$

$97\mathrm{.}7\%$

$98\mathrm{.}3\%$

$99\mathrm{.}2\%$