# Statistics Help

## If you are looking for statistics help then below I have outlined a course of tutorials that I hope you will find useful.

I would encourage you to try the examination questions which are taken from various past papers which should also provide further statistics help.

## Representing Data

## Mean

## Median and Quartiles

- Median, lower, upper quartiles and interquartile range for discrete data
- Exam Questions - Median, lower, upper quartiles and interquartile range for discrete data
- Cumulative frequency curves
- How to interpret class intervals
- Estimating the median, quartiles, percentiles from a grouped frequency table
- Exam Questions - Estimating the median from a grouped frequency table
- Exam Questions - Estimating the median from a histogram

## Standard Deviation

## Statistical Diagrams

## Descriptive statistics

## Probability

## Possibility Space (Sample Space)

## Tree Diagrams

## Venn Diagrams

## Two Way Tables

## Independent, Dependent and Mutually Exclusive Events

## Permutations and Combinations

## Permutations and Combinations

- Permutations of n different items
- Permutations of r items from n different items
- Permutations of repeated letters in a word
- Permutations with restrictions: letters / items together
- Permutations with restrictions : items at the ends
- Permutations with restrictions : items must not be together
- Combinations of n different items
- Combining combinations
- Probability using permutations and combinations

## Discrete Random Variables 1

## The Normal Distribution

## The Normal Distribution

- The normal distribution
- Normal Cumulative Distribution Function
- Inverse Normal Function to find observed values
- The standard normal distribution Z~N(0,1) - Using tables or calculator
- Probabilities from a normal distribution using tables
- Exam Questions - Normal distribution, finding a probability
- Calculating the mean μ and standard deviation σ
- Exam Questions - Calculating the mean and standard deviation
- Exam Questions - Finding an observed value

## Correlation and Linear Regression

## Discrete Random Variables 2

## Binomial Distribution

## Negative Binomial distribution

## Geometric Distribution

## Poisson Distribution

## Probability Generating Functions

## Continuous random variables

## Probability Density Functions and Cumulative Distribution Functions

- What is a probability density function (p.d.f.)?
- Finding the constant k in a p.d.f
- Calculating probability from a p.d.f.
- The cumulative distribution function, (c.d.f)
- Finding the median quartiles and percentiles
- Finding the mode from a p.d.f.
- E(X) and Var(X)
- Exam Questions - Probability density functions and cumulative distribution functions

## Statistical Approximations

## Poisson Approximation to the Binomial Distribution

## Normal Approximation to the Binomial and Poisson Distributions

## Estimation and Sampling

## Estimation and Sampling

## Central Limit Theorem

## Confidence intervals

## Hypothesis Tests

## Hypothesis Tests – Binomial Distribution

## Hypothesis Tests – Poisson Distribution

## Hypothesis Tests – Sample Mean

The following books may offer further statistics help.

[amazon_link asins=’1473652006,1444191179,0273767062,1119293529,0140136320,1593276206′ template=’ProductCarousel’ store=’examsolutcouk-21′ marketplace=’UK’ link_id=’4b75bba5-8844-11e7-82d5-9788581a3e36′]

There may also be tutors that offer statistics help or short holiday revision courses that also offer statistics help listed here. Good luck.