AP Stats Chapter 6

What is a discrete variable?

• A discrete variable is a variable that can take on an infinite number of values.
• A discrete variable is a variable that can take on a countable number of distinct values.
• A discrete variable is a variable that can only take on one value.
• A discrete variable can take on any value within a range.

What is a continuous variable?

• A continuous variable can only take whole number values.
• A continuous variable is a quantitative variable that can take any value within a range.
• A continuous variable is a categorical variable with fixed values.
• A continuous variable is a qualitative variable that describes characteristics.

When a problem says AND it means to...

• subtract

• multiple

• divide

• add

What are the parts of BINS?

• Binary

• Independent

• Number

• Same

• Notation

You use binomcdf for...

• ≤

• <

• >

• ≥

• =

You use binompdf for...

• ≤

• <

• >

• ≥

• =

You use 1-binomcdf for...

• ≤

• <

• >

• ≥

• =

If the sample size of a population is less than or equal to 10% you use...

• Large Counts

• %10 Condition

If the sample size of a population is greater than or equal to 10% you use...

• Large Counts

• %10 Condition

What is the formula for the center of a geometric distribution?

• 1/p
• p^2
• p/(1-p)
• 1/(1-p)