Functions
What is the vertical line test used to determine?
Whether a relation is a function.
What is the square root of 81?
9
What is the square root of 81?
9
What type of relationship is shown when the points on a scatterplot generally rise from left to right?
Positive Correlation
What type of data is typically displayed in a two-way table?
Categorical Data
If f(x) = 2x + 3, what is f(4)?
11
What is 12 squared?
144
What is 12 squared?
144
What is a line that best represents the trend in a scatterplot called?
Line of Best Fit (or Trend Line)
What are the totals of rows and columns in a two-way table called?
Marginal Frequencies
What is the domain of f(x) = 1/x?
All real numbers except 0
Simplify √32
4√2
Simplify √32
4√2
What does it mean if a scatterplot shows no discernible pattern?
No Correlation
What is the probability of an event occurring given that another event has already occurred called?
Conditional Probability
What is the range of f(x) = x^2?
All non-negative real numbers (y ≥ 0)
Solve for x: x² = 25
x = 5 or x = -5
Solve for x: x² = 25
x = 5 or x = -5
What is a point that lies far away from the other points in a scatterplot called?
Outlier
If two variables in a two-way table are independent, what should be true about the conditional probabilities?
They should be approximately equal
What is a function that undoes another function?
An inverse function
What is the result of squaring the square root of 17?
17
What is the result of squaring the square root of 17?
17
What is the term for predicting values outside the range of the data in a scatterplot?
Extrapolation
What statistical test is commonly used to determine if there is a significant association between two categorical variables in a two-way table?
Chi-Square Test