A small computing center has found that the number of jobs s…

A small computing center has found that the number of jobs submitted per day to its computers has a distribution that is approximately bell shaped, with a mean of 91 jobs and a standard deviation of 12.  Where do we expect most (approximately 95%) of the distribution to fall?  

A nurse is caring for a client who delivered a healthy term…

A nurse is caring for a client who delivered a healthy term newborn via cesarean birth. The client asks the nurse, “Is there a chance that I could deliver my next baby without having a cesarean section?” Which of the following responses would be the best answer that the nurse should  provide?

The produce manager at a farmer’s market was interested in d…

The produce manager at a farmer’s market was interested in determining how many oranges a person buys when they buy oranges. He asked the cashiers over a weekend to count how many oranges a person bought when they bought oranges and record this number for analysis at a later time. The data is given below in the table. The random variable x represents the number of oranges purchased and P(x) represents the probability that a customer will buy x oranges. Determine the mean number of oranges purchased by a customer.