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Verified Answer :

texaschic101
  1. (1 1/2) /3 = 
        (3/2) / (3) =
        3/2 1/3 =
        3/6 reduces to 1/2

    6. 1 1/4     3/5 =
        5/4 * 3/5 =
        15/20 reduces to 3/4

    7. mean of 6 and median of 8....
        (8 + 8 + 8 + x) / 4 = 6
        (24 + x) / 4 = 6
        24 + x = 24
        x = 24 - 24
        x = 0

    ur numbers are : 0,8,8,8.....has a median of 8 and a mean of 6

    8. (a) probability of tails is 30/100 reduces to 3/10
        (b) 70/100 = x/300
              cross multiply
              (100)(x) = (300)(70)
               100x = 21000
               x = 21000/100
               x = 210 heads would be expected
        
        

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