Suppose you just received a shipment of eleven televisions. two 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?

Explanation:

Since the total number of television= 11

Number of defective television = 2

Remaining  television that are working = 9

Now,

∴

The probability at least one of the two televisions does not work is 0.345

Given the following parameters:

total  number of television shipped = 11

Defective television = 2

Non defective = 11 - 2 = 9

Pr(two television does not work) =

Similarly;

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

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

Hence the probability at least one of the two televisions does not work is 0.345

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-1   1/6.   you dont subtract the denominators

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