The average time to get a service in a bank is 10 minutes. What is the probability that you will be ended up with the service within the average service time of the bank? a) 0.632 b) 0.368 c) 2.72 d) 0.96 e) none

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are:

Se tiene en una caja de canicas 10, 4 blancas y 6 negras ¿cual es la probabilidad que en 2 extracciones con reemplazo sean blancas? ¿cual es la probalidad que en 2 extracciones sin reemplazo sean negras?