Nighthawk Airlines measure their numbers of lost bags in one month and found that they had lost $35$ bags for $10,000$ customers. If the average number of bags per customer is $1\mathrm{.}2,$ how many errors per million opportunities does this represent? The worldwide rate of baggage mishandling reported by SITA $($Soci$$t$$Internationale de T$$l$$ communications A$$ronautiques$)$in $2017$was $5\mathrm{.}73$per $1,000$passengers$.$ If the average number of checked bags per passenger is assumed to be $1\mathrm{.}3,$how many errors per million opportunities does this represent? How does it compare with the rate for Nighthawk $-$ better or worse?