Suppose you just received a shipment of nine televisions. three of the televisions are defective. if two televisions are randomly selected, compute the probability that both televisions work. what is the probability at least one of the two televisions does not work?

a)

The probability that both televisions work is:  0.42

b)

The probability at least one of the two televisions does not work is:

                          0.5833

There are a total of 9 televisions.

It is given that:

Three of the televisions are defective.

This means that the number of televisions which are non-defective are:

          9-3=6

a)

The probability that both televisions work is calculated by:

( Since 6 televisions are in working conditions and out of these 6 2 are to be selected.

and the total outcome is the selection of 2 televisions from a total of 9 televisions)

Hence, we get:

b)

The probability at least one of the two televisions does not work:

Is equal to the probability that one does not work+probability both do not work.

Probability one does not work is calculated by:

and the probability both do not work is:

Hence, Probability that atleast does not work is:

             0.5+0.0833=0.5833

i dont know nkw

step-by-step explanation:

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1/3 + 1/5 = 8/15.

step-by-step explanation:

hope it