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Seventy percent of children agoes 12 to 17 at least part of thir savings in a savings account. You randomly select 48 children (ages 12

Seventy percent of children agoes 12 to 17 at least part of thir savings in a savings account. You randomly select 48 children (ages 12 to 17) and ask them if they keep at least part of their savings in a savings account. What is the mean and standard deviation

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