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Statistics

Some Statistics questions (And Solutions)

Hypothysis testing (For O/L Maths)

The joy of Statistics

Avon make-up add

Bias, leading quesions

Chaos to order (Binomial distribution)

Activities                     Solutions

The Mean from a Grouped Frequency Table

The Median and Mode from a Grouped Frequency Table

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Types of samples:

Simple Random Sampling

Systematic sampling

Convenience Sampling

Stratified sampling

Cluster Sampling

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Correlation Coefficient and Line of best fit (Linear Regression)

Regression Line Formula

(Not Required for Leaving Cert.)

Using the Regression Formula

(Not Required for Leaving Cert.)

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Standard Deviation

Covariance - Not required for Leaving Cert.

Variance and Standard Deviation

Deriving the Correlation Coefficient Formula - Not Required for Leaving Cert. 

Range and Quartiles

Percentiles

Z-Scores

The Central Limit Theorem

A Central Limit Theorem Problem

Hypothesis testing and P-Values

More Hypothesis testing 

Confidence Interval for the Mean

Confidence Interval for the Proportion

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Confidence Intervals for the Mean and Proportion. Hypothesis Testing

Questions and solutions

(By George Humphries)

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