If (AB)=(A)(B)/N, the attributes are: MCQ with Answer and Explanation

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If (AB)=(A)(B)/N, the attributes are:

A. Positively associated

B. Complete association

C. Independent

D. Negatively associated

Answer: Option C

Solution (By JKSSB Mock Tests)

That equation is the condition for independence of attributes.

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1

If (A)=60, (B)=50, N=100, the maximum possible value of (AB) is:

A. 50

B. 100

C. 10

D. 60

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Correct Answer: Option A

Explanation:
(AB) cannot exceed the smaller of (A) and (B), hence 50.

This question belongs to: Accountancy and Statistics Statistics

Question #2

The population of a country in 2020 was 100 million with a growth rate of 2% per year. Assuming exponential growth, the population in 2022 is approximately:

A. 102 million

B. 108 million

C. 104 million

D. 104.04 million

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Correct Answer: Option D

Explanation:
Using compound formula: 100 × (1.02)^2 = 104.04 million.

This question belongs to: Accountancy and Statistics Statistics

Question #3

In a Poisson distribution, mean = variance. If the mean is 4, the probability of exactly 2 occurrences is:

A. 0.2

B. e^{-4} 4^2 / 2! ≈ 0.1465

C. 0.1

D. 0.3

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Correct Answer: Option B

Explanation:
P(X=2) = e^{-4} × 16 / 2 = 8 e^{-4} ≈ 8×0.0183=0.1465.

This question belongs to: Accountancy and Statistics Statistics

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