Descriptive Stats

What is an anecdote study?

Why is random sampling important?

• makes data collection easy

• it gives everyone the same chance at being selected to reduce bias

• to randomize results

a designed experiment is when the researcher _____ conditions on the individuals that vary from individual-to-individual

What is a population?

• the sample of the group being studied (ie. students at GV in the library)

• all the people in the world (8.1 Billion people)

• ALL of the particular group being studied (ie. All students at GV)

what variable helps to explain the response variables?

• observational variable

• dependent variable

• explanatory variable

• graphing variable

What is the section of a population being studied? Must represent the whole population

variable that is the primary variable of interest (the one you conduct the test to find)

• independent variable

• explanatory variable

• factor variable

• response variable

Numerical Variables are

• qualitative

• quantitative

a researcher observes the individual ________ imposing any conditions on them

what is a numerical summary of the SAMPLE?