Which of the following events is certain? MCQ with Answer and Explanation

Which of the following events is certain?

A. Getting a tail when a coin is tossed

B. Getting a head on two tosses of a coin

C. Getting a number less than 7 on rolling a die

D. Getting a 7 on rolling a die

Answer: Option C

All faces of a die are less than 7, so this event is certain.

This question belongs to: Accountancy and Statistics Statistics

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Question #1 Report Error

In a frequency distribution with classes 0-9, 10-19, 20-29,... the class boundaries for 20-29 are:

A. 19.5 - 28.5

B. 19.5 - 29.5

C. 20 - 29

D. 20.5 - 29.5

Correct Answer: Option B

Explanation:
Given inclusive intervals with gap of 1, subtract 0.5 from lower and add 0.5 to upper.

This question belongs to: Accountancy and Statistics Statistics

Question #2 Report Error

The main objective of vital statistics is to:

A. Collect tax data

B. Measure economic growth

C. Record and analyze vital events

D. Conduct census

Correct Answer: Option C

Explanation:
Vital statistics deal with the recording and analysis of births, deaths, marriages, divorces, etc.

This question belongs to: Accountancy and Statistics Statistics

Question #3 Report Error

For a given data, Σp₁q₀ = 600, Σp₀q₀ = 500, Σp₁q₁ = 700, Σp₀q₁ = 600. The value index is:

A. 116.67

B. 125

C. 140

D. 120

Correct Answer: Option C

Explanation:
Value index = (Σp₁q₁ / Σp₀q₀) × 100 = 700/500 × 100 = 140.

This question belongs to: Accountancy and Statistics Statistics