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The amount of daily time that teenagers spend on a brand A cell phone is...

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Algebra

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The amount of daily time that teenagers spend on a brand A cell phone is normally distributed with a given mean ? = 2.5 hr and standard deviation o = 0.6 hr. What percentage of the teenagers spend more than 3.1 hr?O 5%O 10%O 16%O 32%

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Transcribed Image Text

The amount of daily time that teenagers spend on a brand A cell phone is normally distributed with a given mean ? = 2.5 hr and standard deviation o = 0.6 hr. What percentage of the teenagers spend more than 3.1 hr?O 5%O 10%O 16%O 32%

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