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Median: Reorder the data in numerical order, then select the value that lies directly in the middle of the data line - if there is an odd number of data, the median value is the middle number and if there...

-128  64  32  16  8  4  2  1

   1    1   0    0   0  1  1  0

Therefore 11000110

Increase in temperature causes a decrease in soulubility of gases so loss of oxygen and therefore fish die due to a loss of oxygen 

When an equation has two or more variables, for example and x and y, more than one equation is need to solve it.  The number of equations needs is equal to the number of variables you have.  For example, ...

Translation: Mi piacerebbe uscire con te questa sera, ma ho un appuntamento dal dentista.