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1 In a group of 20 adults 4 out of the 7 women and 2 out of the 13 men were glasses What is the probability that a person chosen at random from the group is a women or someone who wears glasses?
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In a group of 20 adults, 4 out of 7 women and 2 out of 13 men wear glasses. What is the probability that a person chosen at random from the group is a women or someone who wear glasses.
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P(w or g) = P(w) + P(g) - P(w and g)
= 7/20 + 6/20 - 4/20
= 9/20
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Clara Lebsack
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