**Glossary N**

## Noise-cancelling headphones

Headphones that reduce external noise to improve concentration.

## Normal distribution

A statistical distribution where the majority of scores fall near the mean.

## Normal distribution curve

A bell-shaped curve that represents the distribution of scores in a population.

## Norm-referenced test

A test that compares an individual’s performance to a norm group’s performance.

## Note Taking

The process of capturing and retaining important information during learning or work activities.

## Note-taking methods

Techniques for recording and reviewing information for future reference.

## Note-taking strategies

Methods for capturing and retaining important information during learning or work activities.

## Note-taking techniques

Strategies for recording and organizing information during lectures or meetings.

## Number Sequences and Series

Patterns of numbers that follow a specific order or rule.

## Numerical Ability

The capacity to understand and work with numbers.

## Numerical Computation Efficiency

The ability to perform mathematical calculations quickly and accurately.

## Numerical expressions

Mathematical statements that include numbers, variables, and operators.

## Numerical fluency

The ability to perform mathematical operations quickly and accurately.

## Numerical operations

Basic mathematical calculations such as addition, subtraction, multiplication, and division.

## Numerical Reasoning Ability

The capacity to understand and manipulate numerical information to solve problems.

## Nutrition

The study of how food affects the body and its functions.

## Nutrition and hydration

The intake of food and fluids necessary for maintaining good health and physical performance.