Neco 2018 Mathematics Question 4

Practice essay / theory question 4 from the 2018 Neco Mathematics examination. This question covers probability, Venn diagram .

Neco 2018 Mathematics Essay / Theory

Topics: probability Venn diagram

Question 4 NECO • 2018 • MATHEMATICS • essay

A survey of 75 senior secondary students was carried out to find out their participation in three extracurricular clubs: Drama (A), Science (B) and Music (C). The results are represented in the Venn diagram shown.

( a )

Find the probability that a randomly selected student is a member of exactly one club.

( b )

Find the probability that a student belongs to at least two of the clubs.

( c )

Given that a student is a member of the Science club, find the probability that the student also belongs to the Drama club.

( d )

Let X be the random variable representing the number of clubs to which a randomly selected student belongs.

( ) Find the expected value E(X).

( ) Find the variance Var(X).

Get the step-by-step solution, key points required by examiners and detailed marking guidance through the Edcrib AI Tutor.

This is Neco 2018 Mathematics Question 4. It is one of the essay questions from the 2018 Neco Mathematics examination.

The question covers probability, Venn diagram .

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows