For perfect positive association between attributes A and B, we expect: MCQ with Answer and Explanation

Question

Share Report Error

For perfect positive association between attributes A and B, we expect:

A. (Aβ) = 0

B. (αB) = 0

C. Both (Aβ) and (αB) = 0

D. (AB) = 0

Answer: Option C

Solution (By JKSSB Mock Tests)

Perfect positive association means all A's are B's and all B's are A's, so no A without B and no B without A.

This question belongs to: Accountancy and Statistics Statistics

Request complete Subject PDF

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Statistics Questions

Question #1

If the geometric mean of two numbers is 12 and one number is 18, the other number is:

A. 8

B. 9

C. 6

D. 10

View Answer & Solution Discuss

Get Complete Subject PDF for Accountancy and Statistics

Correct Answer: Option A

Explanation:
Geometric mean = √(x×y). Given √(18×y)=12, square both sides: 18y=144, so y=144/18=8. This uses the definition of geometric mean for two values.

This question belongs to: Accountancy and Statistics Statistics

Question #2

Bayes' theorem is expressed as P(A|B) = [P(B|A) × P(A)] / P(B). Here, P(A) is called the:

A. Marginal probability

B. Posterior probability

C. Likelihood

D. Prior probability

View Answer & Solution Discuss

Get Complete Subject PDF for Accountancy and Statistics

Correct Answer: Option D

Explanation:
In Bayesian inference, P(A) is the prior probability, representing initial belief about hypothesis A before observing evidence B; P(A|B) is the updated posterior probability.

This question belongs to: Accountancy and Statistics Statistics

Question #3

If a die is rolled, the sample space is:

A. {1,2,3,4,5}

B. {0,1,2,3,4,5,6}

C. {2,4,6}

D. {1,2,3,4,5,6}

View Answer & Solution Discuss

Get Complete Subject PDF for Accountancy and Statistics

Correct Answer: Option D

Explanation:
A fair die has six possible outcomes: 1,2,3,4,5,6.

This question belongs to: Accountancy and Statistics Statistics

Explore All Statistics MCQs