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GCSE

What is the difference between the median and the mean values for this set of data: 11, 9, 21, 6, 18, 2, 17, 8, 7.

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...

JM
Answered by James M. Maths tutor
3778 Views

Convert -58 into 8bit twos compliment binary

-128  64  32  16  8  4  2  1

   1    1   0    0   0  1  1  0

Therefore 11000110

HB
Answered by Hamish B. Computing tutor
2794 Views

How does hot water in lakes make fish die

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

ZM
Answered by Zehra M. Chemistry tutor
2334 Views

How do I balance the chemical equation: C2H4 + O2 --> CO2 +H2O

First take a look at the equation and see how many elements there are, in this case we have 3 different elements; Carbon, Hydrogen and Oxygen. To balance the equation start off by balancing the elements i...

AP
Answered by Andrei P. Chemistry tutor
53774 Views

What is the difference between current and voltage?

Current and voltage are closely related properties of a circuit, one is caused by the other. What we refer to as voltage is in reality just a difference in charges, so, a difference in the amount o...

BC
Answered by Brian C. Physics tutor
3368 Views

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