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Seventy percent of children ages 12 to17 keep at least part of their savings in a savings account. You randomly select 48 children (ages 12

Seventy percent of children ages 12 to17 keep at least part of their 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 saving account. What is the mean? What is the standard deviation? find the probability that at most 30 children will say yes. Find the probability that between 25

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