Phone Battery Life. Battery life between charges for a certain mobile phone is 20 hours when the primary use is talk time and drops to 7 hours when the phone is primarily used for Internet applications over a cellular network. Assume that the battery life in both cases follows an exponential distribution. a. Show the probability density function for battery life for this phone when its primary use is talk time. b. What is the probability
Phone Battery Life. Battery life between charges for a certain mobile phone is 20 hours when the primary use is talk time and drops to 7 hours when the phone is primarily used for Internet applications over a cellular network. Assume that the battery life in both cases follows an exponential distribution. a. Show the probability density
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