Standardized death rate is used to compare mortality between populations with different: MCQ with Answer and Explanation

Standardized death rate is used to compare mortality between populations with different:

A. Population sizes

B. Fertility rates

C. Income levels

D. Age structures

Answer: Option D

Age structure affects crude death rates; standardization removes this effect to allow fair comparison.

This question belongs to: Accountancy and Statistics Statistics

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Question #1 Report Error

From a standard deck of 52 cards, one card is drawn. What is the probability that it is either a King or a Heart?

A. 4/13

B. 17/52

C. 16/52

D. 1/4

Correct Answer: Option C

Explanation:
P(K or Heart) = P(K) + P(Heart) - P(King of Hearts) = 4/52 + 13/52 - 1/52 = 16/52.

This question belongs to: Accountancy and Statistics Statistics

Question #2 Report Error

If P(A)=0.5, P(B)=0.3, and A, B are mutually exclusive, then P(A∪B) is:

A. 0.2

B. 0.5

C. 0.15

D. 0.8

Correct Answer: Option D

Explanation:
0.5+0.3=0.8.

This question belongs to: Accountancy and Statistics Statistics

Question #3 Report Error

If P(A) = 0.3, P(B) = 0.4, and A, B are mutually exclusive, then P(A∪B) is:

A. 0.12

B. 0.7

C. 0.5

D. 0.1

Correct Answer: Option B

Explanation:
Mutually exclusive → P(A∪B) = P(A) + P(B) = 0.3+0.4=0.7.

This question belongs to: Accountancy and Statistics Statistics