Mathematics, 04.11.2019 23:31, elizzabel1944

The time until recharge for a battery in a laptop computer under common conditions is normally distributed with mean of 270 minutes and a standard deviation of 50 minutes. a) what is the probability that a battery lasts more than four hours? (round the answer to 3 decimal places.) b) what are the quartiles (the 25% and 75% values) of battery

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The time until recharge for a battery in a laptop computer under common conditions is normally distr...