Neco 2025 Mathematics Question 27

Practice objective / multiple choice question 27 from the 2025 Neco Mathematics examination.

Neco 2025 Mathematics Objective / Multiple Choice Hard Difficulty
Question 27 NECO • 2025 • MATHEMATICS • objective

The ages (in years) of seven students are 12, 14, 15, ?, 18, 20 and 22. The mean age of the group is 16 years and the median age is 15 years. Determine the missing age and then find the variance of the ages (use the population variance formula).

Answer Options

A. 104/7
B. 100/7
Correct Answer C. 102/7
D. 102/5
Correct Answer
C
Correct Option:
102/7

About This Question

This is Neco 2025 Mathematics Question 27. It is one of the objective questions from the 2025 Neco Mathematics examination.

Difficulty level: Hard .

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