viewimage.php?id=3db5c935ecd139aa7dbcdfb018d221&no=29bcc427b08b77a16fb3dab004c86b6f7b8421e3740e1c69441ecf4633b6faed3055be32bb5ae690283dc5f9bb02ed8bfd60e66d56fa05b30fdbee48f6be0f841b


viewimage.php?id=3db5c935ecd139aa7dbcdfb018d221&no=29bcc427b08b77a16fb3dab004c86b6f7b8421e3740e1c69441ecf4633b6faed3055be32bb5ae690283dc5f9bb02ed8bfd60e66d56a907bd5fdbb519a7be0f8436



 -       sec

 1     :  25
 2     :  24
 3     :  19
 4     :  17
 5     :  19

 6     :  29
 7     :  25
 8     :  18

avg  :  22.0


Y10 = 18,  Y20 = 27


=> (1 / 2k) * log (45/9) = 22.0


=> k = 0. 037