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Let the random variable be the number of women who do not use computer at work. follows a Binomial distribution with parameters, and . That is, and it is given as,
Probability that at least 1woman does not use a computer at work is given as,
. To make it simpler, this probability is equivalent to,
Therefore, the probability that at least 1 woman does not use a computer at work is 0.8065082.