exam
Maths Puzzle
Numerical Ability
Solve each of the following systems by addition. If a unique solution does not exist, state whether the system is inconsistent or dependent.
x+5y=10
-2x-10y=-20
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exam Other Question
Sketch two normal distributions that show an alpha error of 0.05 and one of 0.10. Discuss what happens to the beta errors when alpha is changed.
what two consecutive even integers whose sum is 400?