Question $1($Mandatory$)(2$ points$)$

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A production line consists of two machines. Only one is required to make shipments. The first one has an uptime of $.9$ and the second has an uptime of $\mathrm{.}7.$ What is the probability of making shipments?

$92\%$

$3\%$

$97\%$

$99\mathrm{.}7\%$