In a 2×2 table, if (AB)=100, (Aβ)=150, (αB)=200, (αβ)=250, the total N is: MCQ with Answer and Explanation

In a 2×2 table, if (AB)=100, (Aβ)=150, (αB)=200, (αβ)=250, the total N is:
A. 700
B. 800
C. 900
D. 600
Answer: Option A
Solution (By JKSSB Mock Tests)
N = sum of all ultimate class frequencies = 100 + 150 + 200 + 250 = 700. This is the total population classified by the two attributes.

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