Stats Reasoning Final Exam Review - Part I

Front

What does a positive correlation indicate in a scatter plot?

Back

As one variable increases, the other variable also increases.

Front

What represents the parameter and statistic in Mya's survey about i-phone ownership?

Back

Parameter: 88%; Statistic: 75%.

Front

What does a negative correlation indicate in a scatter plot?

Back

As one variable increases, the other variable decreases.

Front

What is the measure of central tendency that best represents a data set with an outlier?

Back

Median.

Front

What is a characteristic or measure of a population called?

Back

Parameter.

Front

What is the definition of a statistic?

Back

A characteristic or measure obtained by using the data values from a sample.

Front

What is the definition of a parameter?

Back

A characteristic or measure obtained by using all the data values from a population.

Front

What does the term 'outlier' refer to in a data set?

Back

An outlier is a data point that differs significantly from other observations.

Front

What is the purpose of a scatter plot?

Back

To visually display the relationship between two quantitative variables.

Front

What does it mean if there is no correlation between two variables?

Back

There is no predictable relationship between the variables.