Bao is a teacher. When she is talking to students one on one, she gently encourages them to express themselves by saying, "Tell me more," "go on," "I understand." These are examples of .

Find the balance at the end of 4 years if 1000 is deposited at the rate of

Determine the mean and variance of the random variable with the following probability mass function. f(x)=( 729divided by 91) (1 divided by 9) superscript x baseline comma x equals 1,2,3 round your answers to three decimal places (e.g. 98.765).

On saturday morning, calls arrive at ticketmaster at a rate of 108 calls per hour. what is the probability of fewer than three calls in a randomly chosen minute?