\begin{tabular}{||l} 8) Se quiere seleccionar un comité de 5 personas a \\ partir de 6 mujeres y 4 varones. ¿Qué \\ probabilidad habría que el comité este integrado \\ por 2 mujeres y 3 varones? \\ A) \( 3 / 21 \) \\ B) \( 5 / 22 \) \\ C) \( 5 / 21 \) \\ D) \( 13 / 21 \)\end{tabular}

5. Lança-se uma moeda e verifica-se se a face voltada para cima é cara ou coroa. Indique, na forma de fraçào, de nú- mero decimal e de porcentagem, a probabilidade de o resultado ser: a) cara; b) coroa. Lança-se um dado comum e observa-se o número de pontos de sua face superior. Calcule a probabilidade de o número obtido ser: a) par;

In a town, the number of electric power failures occurs randomly with an average of one failure every 4 months. Calculate the probability that there will be no failure over the next six months. 0.2231 0.6653 0.1353 0.3679

The number of births in a hospital follows a Poisson distribution with an average number of 1 birth per hour. What is the standard deviation associated with the number of births within a whole day (i.e. over 24 hours)?

In a town, the number of electric power failures occurs randomly with an average of one failure every 4 months. What is the variance associated with the number of failures over six consecutive months?

In a town, the number of electric power failures occurs randomly with an average of one failure every 4 months. Calculate the probability that there will be no failure over the whole year. 0.000 0.05 0.735