Question:

86 Suppose that the length of long distance phone calls

Last updated: 11/2/2023

86 Suppose that the length of long distance phone calls

86 Suppose that the length of long distance phone calls measured in minutes is known to have an exponential distribution with the average length of a call equal to eight minutes a Define the random variable X b Is X continuous or discrete c X d e d f Draw a graph of the probability distribution Label the axes g Find the probability that a phone call lasts less than nine minutes h Find the probability that a phone call lasts more than nine minutes i Find the probability that a phone call lasts between seven and nine minutes nother on average what would you expect the total to be Why