STAAR Review: MAD, Equations/Inequalities, Real Numbers ACC

Front

What is the Mean Absolute Deviation (MAD)?

Back

The Mean Absolute Deviation (MAD) is a measure of the dispersion of a set of data points. It is calculated by taking the average of the absolute differences between each data point and the mean of the data set.

Front

How do you calculate the Mean Absolute Deviation (MAD)?

Back

1. Find the mean of the data set. 2. Subtract the mean from each data point and take the absolute value of each result. 3. Find the average of these absolute values.

Front

What is a real number?

Back

A real number is any number that can be found on the number line, including both rational numbers (like integers and fractions) and irrational numbers (like square roots of non-perfect squares).

Front

What is a whole number?

Back

Whole numbers are non-negative integers, including zero. They are the set of numbers {0, 1, 2, 3, ...}.

Front

What is the relationship between real numbers and whole numbers?

Back

Whole numbers are a subset of real numbers. Every whole number is a real number, but not every real number is a whole number.

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What is a scatterplot?

Back

A scatterplot is a graph that shows the relationship between two quantitative variables. Each point on the graph represents an observation.

Front

What does a nonlinear relationship in a scatterplot indicate?

Back

A nonlinear relationship indicates that the change in one variable does not produce a constant change in the other variable. The points do not form a straight line.

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How do you find the intersection point of two linear equations?

Back

To find the intersection point, solve the equations simultaneously to find the values of the variables that satisfy both equations.

Front

What is the formula for calculating the cost of tickets at Carnival M?

Back

The total cost at Carnival M is given by the formula: Total Cost = 5.00 + 0.65 * number of tickets.

Front

What is the formula for calculating the cost of tickets at Carnival P?

Back

The total cost at Carnival P is given by the formula: Total Cost = 10.00 + 0.45 * number of tickets.