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pogonyaev
3 years ago
8

Suppose you just received a shipment of ninenine televisions. twotwo of the televisions are defective. if two televisions are ra

ndomly​ selected, compute the probability that both televisions work. what is the probability at least one of the two televisions does not​ work
Mathematics
1 answer:
Alinara [238K]3 years ago
8 0
Probability of both working is 77:99
Probability of them not working is 2:99

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Answer:

Step-by-step explanation:

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\left[\begin{array}{ccc}-1&-4&2\\1&2&-1\\1&1&-1\end{array}\right] *\left[\begin{array}{ccc}x\\y\\z\end{array}\right] =\left[\begin{array}{ccc}-10\\11\\14\end{array}\right]

So solution set

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1    2   0

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Solution set would be

x=12

y=-3

z=-5

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