IM Algebra Semester 1 Review

Front

What is standard deviation?

Back

Standard deviation is a measure of the amount of variation or dispersion in a set of values. A smaller standard deviation indicates that the values tend to be closer to the mean of the set.

Front

How do you determine which distribution has a smaller standard deviation?

Back

You can compare the spread of the data in the distributions. The distribution with data points that are closer to the mean has a smaller standard deviation.

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What does an open dot represent when graphing inequalities?

Back

An open dot indicates that the value at that point is not included in the solution set, used for inequalities with < or >.

Front

What does a closed dot represent when graphing inequalities?

Back

A closed dot indicates that the value at that point is included in the solution set, used for inequalities with ≤ or ≥.

Front

What is variability in a data set?

Back

Variability refers to how spread out or closely clustered the data points are in a data set.

Front

How can you compare variability between two data sets?

Back

You can compare the range, interquartile range, or standard deviation of the two data sets.

Front

What does the vertical intercept of a graph represent?

Back

The vertical intercept shows the value of the dependent variable when the independent variable is zero, often representing the starting height in motion problems.

Front

What is the formula for calculating percentage?

Back

Percentage = (Part/Whole) x 100.

Front

How do you find the percentage of a specific group within a total?

Back

Divide the number of individuals in the specific group by the total number of individuals, then multiply by 100.

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions using symbols such as <, >, ≤, or ≥.