Review Unit 4B: Statistical Analysis

Front

What is the expected number of students attending 4-year college if 5 million students graduate from high school?

Back

2,150,000

Front

What type of study can determine causation between variables?

Back

Experiment

Front

What type of data is collected when asking 'How tall are you?'

Back

Continuous

Front

How would you describe a correlation with a very slight upward slope to the data points?

Back

Strong positive correlation

Front

What level of correlation is typically considered 'no relationship' between variables?

Back

|r|<0.25

Front

Define 'Observational Study'.

Back

A study where the researcher observes and records behavior without manipulating any variables.

Front

Define 'Experiment'.

Back

A study where the researcher manipulates one or more variables to determine their effect on another variable.

Front

What is 'Correlation'?

Back

A statistical measure that describes the extent to which two variables change together.

Front

What does a 'Strong negative correlation' indicate?

Back

As one variable increases, the other variable tends to decrease.

Front

What is 'Discrete data'?

Back

Data that can only take specific values, often counted in whole numbers.