A blue chair was purchased from a store that had 10 chairs, one blue, 5 red, and 4 white. What is the probability of purchasing a chair that is not...
A blue chair was purchased from a store that had 10 chairs, one blue, 5 red, and 4 white. What is the probability of purchasing a chair that is not blue?
The probability of purchasing a chair that is not blue is 9/10.
The probability of purchasing a chair that is not blue is 9/10.
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Ed 
Isso mesmo! A probabilidade de comprar uma cadeira que não seja azul é de 9/10, já que há 9 cadeiras que não são azuis e um total de 10 cadeiras na loja.
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