Given (AB)=30, (Aβ)=10, (αB)=10, (αβ)=10. The value of Yule's Q is: MCQ with Answer and Explanation

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Given (AB)=30, (Aβ)=10, (αB)=10, (αβ)=10. The value of Yule's Q is:

A. 0.33

B. 0.8

C. 0.5

D. 0.2

Answer: Option C

Solution (By JKSSB Mock Tests)

ad=30×10=300, bc=10×10=100. Q=(300-100)/(300+100)=200/400=0.5.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

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Assertion (A): For a frequency distribution with unequal class intervals, the histogram is drawn with the area of the rectangle proportional to the class frequency. Reason (R): When class widths are unequal, the frequency density must be used to construct the histogram. Choose the correct option:

A. A is true, R is false

B. Both A and R are true, but R is not the correct explanation of A

C. Both A and R are true, and R is the correct explanation of A

D. A is false, R is true

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Correct Answer: Option C

Explanation:
In a histogram, area (not height) represents frequency; if intervals are unequal, height = frequency / width (frequency density). So R explains A.

This question belongs to: Accountancy and Statistics Statistics