Adv. Data Analysis - Graphs and GLM - Week 3

For what type of data would you use a bar graph for?

Categorical

A histogram would be used for what type of data?

interval and ratio

What is this distribution called?

Bell curve

What is skew?

The symmetry of distribution.

P

Bruh

Bruh

What skewness is displayed here?

negative

What skewness is displayed here?

positive

Kurtosis is the ____ of the tails.

heaviness

Leptokurtic means?

Heavy and pointy tails, higher probability of extreme values

Playkurtic means?

flatter tails

What is population?

The group you want to study

What is a sample?

A set of people from the population that you test in the stidy

What is a sampling error?

The difference between the parameter and the value of the sample

What is a parameter?

an estimation based on sampling data

What is variability?

A measure of how different the scores in the distribution are. Tells us how similar/different the scores are.

Variability shows _______ between a given score and the mean.

how much distance

What is a deviation?

The difference between the mean and an actual data point

What is positive deviation?

Scoring above the mean

What is negative deviation?

Scoring below the mean