Solved: Brush your teeth the amount of time ricardo spends brushing, Basic Statistics

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Brush your teeth the amount of time ricardo spends brushing

Question: Brush your teeth The amount of time Ricardo spends brushing his teeth follows a Normal distribution with unknown mean and standard deviation. Ricardo spends less than one minute brushing his teeth about 40% of the time. He spends more than two minutes brushing his teeth 2% of the time. Use this information to determine the mean and standard deviation of this distribution.

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Basic Statistics: Brush your teeth the amount of time ricardo spends brushing

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