asked 176k views
4 votes
Uma caixa contém 40 bolinhas de jogo de tênis, sendo 10 verde, 14 azuis e 16 vermelhas. Retirando uma bola ao acaso da caixa, qual a probabilidade desta bola ser vermelha? Assinale a alternativa correta, que representa a probabilidade desta situação.

qual dessas quatro e a resposta .
14 / 40
15 / 40
16 / 40
17 / 40

asked
User Jendy
by
8.2k points

1 Answer

4 votes

Answer:

p = 15/40

Explanation:

Since the total number of marbles is 40, that is our size of the sample. there are 16 red ones on that sample, so the probability of extracting a red marble from the box is given by the ratio of successes divided the total number of marbles:

p = 15/40

answered
User Hemlocker
by
8.5k points
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