Asked by tori
                Anita has two sisters and three brothers.  The mean of all their ages is 6 years.  Wht is the mean of their agesin 10 years and 20 years?
            
            
        Answers
                    Answered by
            PsyDAG
            
    mean =∑x/n
6 = ∑x/6
∑x = 36
In 10 years ∑x = 36 + 6(10)
In 20 years ∑x = 36 + 6(20)
I'll let you do the calculations.
    
6 = ∑x/6
∑x = 36
In 10 years ∑x = 36 + 6(10)
In 20 years ∑x = 36 + 6(20)
I'll let you do the calculations.
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