Neco Model Questions Vol1 2019 Civic Education Question 30

Practice objective / multiple choice question 30 from the 2019 Neco Model Questions Vol1 Civic Education examination.

Neco Model Questions Vol1 2019 Civic Education Objective / Multiple Choice Medium Difficulty
Question 30 NECO_MODEL_QUESTIONS_VOL1 • 2019 • CIVIC_EDUCATION • objective

A recent survey on national identity reports the following ethnic composition of the population: Group A - \(40\%\), Group B - \(25\%\), Group C - \(20\%\), Group D - \(10\%\), Others - \(5\%\). If two persons are selected at random from the population, what is the probability (in percent) that they belong to the same ethnic group? Also state the probability that they belong to different groups.

Answer Options

A. Same ethnic group: 30 %; different ethnic groups: 70 %
B. Same ethnic group: 22.5 %; different ethnic groups: 77.5 %
Correct Answer C. Same ethnic group: 27.5 %; different ethnic groups: 72.5 %.
D. Same ethnic group: 25 %; different ethnic groups: 75 %
Correct Answer
C
Correct Option:
Same ethnic group: 27.5 %; different ethnic groups: 72.5 %.

About This Question

This is Neco Model Questions Vol1 2019 Civic Education Question 30. It is one of the objective questions from the 2019 Neco Model Questions Vol1 Civic Education examination.

Difficulty level: Medium .

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