Organizing Data
Data Relationships
FRQ
Formulas
Inference & Tests
100
This measure of center is more resistant to outliers than the mean.
What is the median?
100

actual y - predicted y

What is the residual?

100

This word is what should be used in all of your FRQ writing to relate the answers back to the problem. 

What is context

100

Formula 1

What is the addition rule? 

100

The type of significance test used for the mean of a single population when the standard deviation of the population is known.

What is a 1 sample Z test (or Z procedure)?

200
To calculate, subtract the mean of the distribution from the observed x, then divide by the standard deviation.
What is the z-score (or standardized value)?
200

Measures the direction and strength of a linear relationship between two quantitative variables.

What is correlation (or r)?

200

Type of inference condition that is proved by np>10 and n(1-p)>10 for proportion questions.  Also can be n>30 for mean type questions. 

What is normality. 

200

Formula 2

What is the binomial distribution?

200

Separating the population by creating groups where only 2 or 3 groups are chosen for the sample. 

What is a cluster sample?

300

This rule helps to determine if data is normally distributed. Using this rule, one can find the percentage of data between 1,2, or 3 standard deviations from the mean. 

What is the empirical rule?

300

The fraction of the variables in the values of y that is explained by the LSR of y on x.

What is the coefficient of determination (or r squared)?

300

1. 2 outcomes

2. Fixed number of trials 

3. Independent 


What are the conditions for a Binomial probability distribution.  

300

Formula 3

What is the given rule?

300

The type of effect where a dummy pill is given and results are measurable. 

What is the placebo effect?

400

This calculator command can be used to find the area under a normal distribution and above an interval.

What is normalcdf?

400
Predicting a value that is outside the range of x values. 

What is extrapolation?

400

Using words like "predicted", "somewhat",  or "possible". 

What is nondeterministic language. 

400

Formula 4

What is the standard error for a 1 prop inference test?

400

In order to be considered an experiment, these types of groups must be shown. 

What is a control group and a test group or two types of testing groups. 

500

The square of the standard deviation.

What is the variance?

500

This type of point can also be classified as a residual, or a point that influences the LSR line. 

What is a leverage (friction) point.  

500
When the questions asks to describe the distribution of the data, these are the four things that should be discussed.  

What are shape, outliers, center, and spread. 

500

Formula 5

What is the standard error for a 2 sample t inference procedure?

500
These 2 vocabulary words are used to show the effectiveness of an experiment. 

What are replication and generalization to the population. 

M
e
n
u