Mathematics, 07.05.2021 21:10, genyjoannerubiera
The talk-time battery life of a group of cell phone is normally distributed with a mean
of 5 hours and a standard deviation of 15 minutes.
b) What percent of the phones have a battery life between 4.5 hours and 5.25
hours? (include 1 decimal place WITHOUT the % sign)
Answers: 3
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The talk-time battery life of a group of cell phone is normally distributed with a mean
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