The service time distribution described the probability P that the service time of customer will be no more than the hours. If m is the Mean number of customers serviced in a hour, then P=1-e^-mt. B. A credit card customer service department averages 34 calls per hour. Use a graphing calculator to determine the amount of time after which it is 50% likely that a customer has been served?

Show algebraically that f and g are inverse functions f(x)=x^2/-6; g(x)=square root of 2x+12

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3