Suppose That During Business Hours,the Time Between Successive Wireless Calls $E ( X ) = 0.025$

question 8

Multiple Choice

Suppose that during business hours,the time between successive wireless calls at a network switch can be represented by an exponentially distributed random variable X with expected value $E ( X ) = 0.025$ second.Using an appropriate probability density function,find the probability that the time between the arrival of successive wireless calls at the switch is between 0.03 and 0.065 second.Round to the nearest hundredth.

• A)0.63
• B)0.46
• C)0.77
• D)0.23

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