Post Utme Futa 2020 Mathematics Question 37

Practice objective / multiple choice question 37 from the 2020 Post Utme Futa Mathematics examination.

Post Utme Futa 2020 Mathematics Objective / Multiple Choice
Question 37 POST_UTME_FUTA • 2020 • MATHEMATICS • objective

A random variable X has a probability distribution given by P\(X = 1 = 0.4\), P\(X = 2 = 0.3\), P\(X = 3 = 0.2\), P\(X = 4 = 0.1\). Find the mean and variance of X.

Answer Options

Correct Answer A. \(mean = 2.5\), \(variance = 1.2\)
B. \(mean = 2.2\), \(variance = 1.1\)
C. \(mean = 2.8\), \(variance = 1.5\)
D. \(mean = 3.0\), \(variance = 1.8\)
Correct Answer
A
Correct Option:
\(mean = 2.5\), \(variance = 1.2\)

About This Question

This is Post Utme Futa 2020 Mathematics Question 37. It is one of the objective questions from the 2020 Post Utme Futa Mathematics examination.

View More Post Utme Futa 2020 Mathematics Questions More Post Utme Futa Practice Questions Back to Questions

Master the Exam!

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
Chat with Support