In a survey, the probability that a household owns exactly two tablet computers is $\frac{5}{12}$.

Question

In a survey, the probability that a household owns exactly two tablet computers is $\frac{5}{12}$. A total of 700 surveyed households do not own exactly two tablets. One household is selected at random. Find the total number of households surveyed.

Accepted Answer

$1200$ households.

Recovering a survey size from a complement

Recovering a survey size from a complement

Solution:

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