If you spend less than one minute brushing your teeth about 40% of the time and more than two minutes brushing 2% of the time, what are the mean and standard deviation of the normal distribution for the amount of time you brush your teeth?
If you spend less than one minute brushing your teeth about 40% of the time and more than two minutes brushing 2% of the time, what are the mean and standard deviation of the normal distribution for the amount of time you brush your teeth?
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