Three dice are rolled. The probability of getting a sum of 5 is: MCQ with Answer and Explanation

Three dice are rolled. The probability of getting a sum of 5 is:

A. 10/216

B. 5/216

C. 15/216

D. 1/36

Answer: Option D

Combinations: (1,1,3) and (1,2,2) each with 3 permutations, total 6 favorable. 6/216 = 1/36.

This question belongs to: Accountancy and Statistics Statistics

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Question #1 Report Error

A researcher wants to compare mortality between two towns with different age structures. She should use:

A. Neonatal mortality rate

B. Infant mortality rate

C. Standardized death rate

D. Crude death rate

Correct Answer: Option C

Explanation:
Standardization removes the confounding effect of age.

This question belongs to: Accountancy and Statistics Statistics

Question #2 Report Error

What is the primary advantage of the Weighted Arithmetic Mean over the Simple Arithmetic Mean?

A. It can be calculated for qualitative data

B. It is easier to calculate

C. It gives appropriate importance to different items based on their significance

D. It ignores extreme values

Correct Answer: Option C

Explanation:
Weighted mean assigns weights proportional to the relative importance of items, providing a more accurate average.

This question belongs to: Accountancy and Statistics Statistics

Question #3 Report Error

Classification of students by their marks in a test is an example of:

A. Qualitative classification

B. Geographical classification

C. Chronological classification

D. Quantitative classification

Correct Answer: Option D

Explanation:
Marks are numerical, so grouping by marks is quantitative classification.

This question belongs to: Accountancy and Statistics Statistics