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A recent survey found that 72% of all adults over 50 own cell phones. You randomly...

A recent survey found that 72% of all adults over 50 own cell phones. You randomly select 43 adults over 50, and ask if he or she owns a cell phone. Find the mean number of cell phones owned by a sample of 43 adults over 50 years old. Round to two decimal places

Math   Statistics-And-Probability   
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(Sry forgot to clarify lin. means linearity here)

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