Variable Statistics Review

Combining Like Terms means to...

• Add or subtract terms that have different exponents

• divide on both sides

• Add or subtract terms with the same variable and the same exponent.

• Multiply all the variables

If a relation is a function, there must NOT be any repeating ___ values

• y

• x

• exponent

• slope

Which type of line has a slope of zero?

• vertical line

• y = x

• horizontal line

• downhill line

Determine whether the variable is qualitative or quantitative

• Qualitative

• Quantitative

A distribution which has the values evenly distributed throughout the range of the data

• Uniform Distribution

• Skewed Distribution

What is the word in statistics for any characteristic or attribute of a person, place, or thing?

• variable

• descriptive statistic

• inferential statistic

• parameter

A variable (or response variable) is

• a characteristic of interest about each individual element of a population or sample

• a characteristic that is irrelevant to the collection of the data

• a characteristic that changes when the data is collected

• a characteristic or trait that will be ignored in a sample population

Match the following

• Confounding Variable

• A variable whose values are used to explain or

  predict corresponding values for the response variable.

• x

• A variable that is related to the explanatory

  variable and influences the response

  variable and may create a false perception of

  association between the two.

• y

• Dependent Variable symbol

• Dependent Variable

• A variable whose values are explained or predicted by the explanatory variable

• Independent Variable

• Independent Variable symbol

Determine whether the variable is qualitative or quantitative

Spending

• Qualitative

• Quantitative

Determine whether the quantitative variable is discrete or continuous

• Discrete

• Continuous