exam Maths Puzzle Numerical Ability

These data represent the population of a certain geographic region.
Year Population (in millions)
1950 34
1960 38
1970

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exam Other Question

What value does the null hypothesis make a claim about?
A) Population parameter
B) Sample statistic
C) Sample mean
D) Type II error
E) None of the above Perform Indicated Operation
(5x^2-7x+2)-(3x^2-4x-7)