Vital statistics mainly record: MCQ with Answer and Explanation

Vital statistics mainly record:

A. Crop production

B. Births, deaths, and marriages

C. Educational data

D. Industrial output

Answer: Option B

Vital events include births, deaths, marriages, divorces.

This question belongs to: Accountancy and Statistics Statistics

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Question #1 Report Error

The arithmetic mean of the numbers 12, 18, 24, and 30 is:

A. 21

B. 20

C. 22

D. 24

Correct Answer: Option A

Explanation:
Arithmetic mean = (12 + 18 + 24 + 30) / 4 = 84 / 4 = 21. This is the sum of observations divided by the number of observations.

This question belongs to: Accountancy and Statistics Statistics

Question #2 Report Error

Assertion (A): Harmonic mean is greater than geometric mean for positive numbers. Reason (R): For positive numbers, AM ≥ GM ≥ HM.

A. A is true, R is false

B. A is false, R is true

C. Both A and R true, and R is correct explanation

D. Both A and R true, but R is not correct explanation

Correct Answer: Option B

Explanation:
The correct inequality is AM ≥ GM ≥ HM, so HM ≤ GM, thus HM is not greater. So assertion false, reason true.

This question belongs to: Accountancy and Statistics Statistics

Question #3 Report Error

Yule's coefficient of association (Q) ranges between:

A. -1 and +1

B. 0 and 1

C. 0 and 100

D. -∞ and +∞

Correct Answer: Option A

Explanation:
Q = (ad - bc) / (ad + bc) lies between -1 and +1.

This question belongs to: Accountancy and Statistics Statistics