Y2 Normal Distribution

In the second year at A-Level you will learn how to use a Normal Distribution. You need to know:

• What it is and what it's properties are

• When it would be appropriate to use it

• To be able to calculate the probability that an event occurs given that it is normally distributed

• To be able to find a value given the probability

• To be able to find the mean and/or standard deviation, given one or two probability statements

• To be able to perform a hypothesis test to test whether a sample has evidence that a given mean has changed

• To be able to use a normal distribution to make approximations to a binomial distribution

Normal: Basics

What is it?

How we use it

Normal: Finding Probabilities

Example1

Example2 

Example3 - Wordy

Normal: Using Inverse

Intro

Example

Finding Mean/Standard Deviation

Normal: Everything

This video covers all the aspects of using a calculator to work with Normal distribution, whether it is to find a probability, use inverse or finding the standard deviation or mean. It is quite long, but is worth a look if you want a full rundown of the topic.

Video

Example: Normal/Binomial

Normal Approximation to Binomial

Intro

Continuity Corrections

Example