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Math exam

How to find that math? The weights in kg of the hand luggage carrried on to flight by 97 passengers are summarised by
Sum(x-5)=314 sum(x-5)^2=1623
(edited 7 months ago)
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Original post by Bolormaamb
How to find that math? The weights in kg of the hand luggage carrried on to flight by 97 passengers are summarised by
Sum(x-5)=314 sum(x-5)^2=1623


It helps to say what you want to find are Sum x and Sum x^2. So for the first one, how does subracting 5 off each bag affect the total?
(edited 7 months ago)

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